Germans make good stuff. That lamp went over 60 times its rated maximum wattage potential without blowing. Now that's what I call safety for a lamp that contains Mercury which is dangerous.
Just came across your video. That experiment should have been done with UV blocking goggles. All lamps produced UV by nature and the amount that you generated can and will produce cataracts and other permanent eye damage. Also I would highly recommend having a clear shield of lexan around the test in case of catastrophic failure. Had it exploded you would have been showered with white hot quartz fragments. I've worked in many labs prototyping equipment so I speak from experience. One last thought, that is a hell of a ballast to take that kind of abuse. I would name this the sun photosphere simulator.
Sir! That was absolutely pure insanity! Especially that dodgy solid aluminum fuse. I'm honestly surprised that the glass didn't melt in that white-hot temperature. Very, very interesting!
I've ran 175w HPS off 1000 watt ballasts for hours on end without them giving up. Brilliant sunlight white light and the whole lamp outer shell glass was glowing dull red when shut off. Often pondered on putting the inner arc tube inside a polished aluminum water cooled tube with a lens set on the one end to make a 'white light' laser of sorts with it.
@A real bisexual petrol-head So? People still drive Petrol cars over Hybrids and EVs. Incandescents may be inefficient and only last 1000 hours, but they have the highest CRI (colour rendering index) 95/100. LEDs can only go up to 90 and most only do 80 which is not bad compared to Flourescent Tubes and CFLs which do 40.
Good chance this bulb was manufactured in my hometown (Augsburg, Germany) just a few years before our OSRAM facility was bought by the Ledvance company(along with the brand and all other facilitys) and then, after multiple decades, was closed recently and is currently beeing demolished. Nice to see it here, makes me remember the better times.
Sunglasses LOL I have a 400 watt blacklight one and running it at its rated power absolutely hurts my eyes even with sunglasses on. I have to wear ski goggles if I want to look at it at close range given how powerful it is.
I would really like to cast a permanent shadow on a wall though. Obviously I can't use nuclear power to do that and my 400 watt mercury vapor bulbs aren't nearly as powerful enough to accomplish that. Maybe I'll need several photo studio flash units or someting similar ? Any idea ? Thank's.
What UV rays? most of mercury radiation is at lines of 254 nm and a little bit of 185 nm, mostly absorbed by the phosphor coating and what gets past absorbed by outer envelope glass. Even suntan UV lamps block UVC and UVB.
'Sir have you been staring into a sun for long periods of time?' "No" 'Then what caused those cataracts in your eyes?' 'I was overclocking my lightbulbs'
Its because Mercury is the only metal which actively builds and creates a resistance on its surface, acting as a varistor, and when you consider the old arc rectifiers, those things could handle unbelievably immense amounts of electricity. You would also find that as the current increases the voltage drop remains the same throughout the whole climb to 5kw where it bursts
Mercury arc rectifiers were kinda ballasted by the load that was connected to them, therefore they weren't directly connected to the power without any limit. Try connecting a mercury vapor bulb directly to the mains without a ballast and see what will happen. Or I should's say don't do that. It will explode and send sharp shards of glass everywhere as well as toxic mercury vapor in the air.
Dan...i love your channel...you select interesting yet obscure subject matter which happens to be a winning combo with most people....your vids are a concatenation of mind - blowing amidst the mundane..a lot of mind blowing details about familiar subjects...i think success is on its way to you...i hope it is as it is well deserved... Good luck :-)
6000watts. I am more than a little intrigued. This little experiment was just astonishing, and I love the descriptive voice over. The Ignitor Capacitor for a 1000W HPS ballast produces some 4-5 kV in order to strike the arc. The 1000 watt sodum tube is I'd guess at least 8" long between the two electrodes. FIrst the mercury is entrained into the voltage discharge and heats up. Then the sodium metal becomes gaseous and it too becomes part of this plasma.The ignitor then takes a backseat, and reacts less as the bulb comes online - resistance becomes negative its burst of high volt spike become minuscule but never die off completely. The bulb then is running on the transformer secondary windings alone. I cannot test any of the process with my gear, but would love to fool with the output of the Ignitor
It's one of the reasons a MV lamp lasts so long. In theory an LED should have comparable life. But the delicate control circuitry is often first to fail. A MV lamp and wire-wound ballast can't be beaten for durability.
Yes and also the LEDs themselves don't take much abuse, especially if not properly heatsinked. Delicate semiconductors they are.. Sure the capacitors in the control gear are first to tire from long term heat.
I think I know why the glass envelope survived. When you switched it to 5kW, it was broken more from the thermal shock. Note how it broke almost instantly. It didn't break from overpressure. Though the pressure inside was already at the level of a standard warmed up lamp, which exceeds outside pressure, that pressure is not enough to create a completely destructive explosion when it fails. So you destroyed the inner tube with too much heat and the pressure escaped. The pressure really didn't have a chance to build. Your bulb was rated 80 watts. Next time, try running it at 1000W for a hour, and see how long it lasts. Notice that when you used 1000W in this video, it didn't instantly destroy the inner tube. That meant the thermal shock of switching to 1000W was not sufficient to shatter the inner tube. So that means it would have held its structural integrity at that level of thermal shock, and the gas could have been heated to a MUCH higher temperature if left running at 1000W than it ever did at 5000W, because the tube wouldn't immediately break and release the gas. I predict that at 1000W it would hold for several minutes, eventually failing due to OVERPRESSURE (not thermal shock), and at the kind of pressure needed to rupture that inner tube (which is built sturdily to withstand a LOT of pressure) when the tube burst, the flying shards of the inner arc tube would be propelled so violently by that pressure, that they would attain very high velocities before striking the outer envelope, which would in turn cause them to strike that envelope with extreme force, causing that outer envelope to shatter. So yes, in some cases, less can be more. Less power to the tube means a more violent explosion, because the pressure is allowed to build up more before the tube shatters. Please try this experiment again, but this time don't go over 1000W. Stop cranking up the power at 1000W (or maybe even a bit less, like 750W, and just let it sit there for an hour (or however long it takes for the tube to burst). I think you will be quite happily surprised, as you will find that you will get the results that you attempted (but failed) to get in your first attempt at the experiment. And I personally will have my curiosity satisfied. I've always wanted to know what a mercury vapor lamp explosion looks like, without having to do such a dangerous experiment myself (because I don't have any facility like you do, where you can safely blow stuff up for fun). I've always read warnings on boxes for Mercury, Sodium, and Metal Halide arc lamps, about always using the EXACT ballast (not even a little more power or a little less power) for your bulb, as failure to do so can cause it to blow up. Ever since reading such a warning, I've always been curious what such a bulb explosion would look like, but haven't ever had the courage to test it myself. So maybe you can do it for me in your next video,.
I doubt the small thermal mass of the gas inside the small tube (and even the glass tube itself) wouldn't have already reached its terminal temperature and pressure on 1000W within seconds. Not that I wouldn't be just as curious as you to see what would happen with prolonged lesser overdrives ;)
In the US, most of these lamps come with Mogul screw bases. It IS possible to insert them into the wrong fixtures. Placing it in a higher or lower wattage fixture leads to short life. Low ballast current usually leaves it glowing all weird - pinkish or bluish.
I always have laugh when watching lamps get super bright. it takes me back to the time when regular bulbs could be bought here and they like mounted in a work light gets dropped and you are stunned by the light as it glows dead a while later, but to see this was kinda epic lol
+Physics & Stuff In our country (what most people call) "a regular bulb" with filament is forbidden these days and we may only buy LED or Energy saver bulbs. at the most there are some but not all kinds of halogen bulbs available now...
+Physics & Stuff Lucky you :) not even 15 watts bulbs can be bought here anymore, only halogen types with a little lower watt than the replaced type you may get, also you cannot buy halogen bulbs with frosted glass, only clear as the frosted ones also got forbidden and they don't give the same types of light :/ the LED can have non clear cover that spread the light better but they also don't give the smooth light as the frosted regular bulbs did. sigh
To explain how bright that light is, it's as bright as your regular lights are after sleeping in pure darkness for 8 hours and then you turn the lights on to use the bathroom in the middle of the night.
They build it to stand so high a power level to make it durable. The bulb can take 4000 watts, but for how long? Underrate it at 1000 watts and it will survive for months. Same with engines. Your family car engine could make far more horsepower with some induction and exhaust mods, but at the cost of a shorter life of engine parts before failure.
So... Let's see how long it can survive with 800 Watts! And what about 4000? If it lasts for over 1 minute while pushing 4.000, there can be actual uses for it.
i got one of these on the wall outside my house, if i turn it on and let it on for a couple of minutes and switch it off and on again, it won't start for about 10 minutes. why will it act like this?
This often happens because the igniter cannot supply a high enough striking voltage to overcome the extremely high pressure in a hot lamp. The lamp just needs to cool down again before it can re-ignite.
+DanTheAwesomeMan Some have a bi-metal switch inside to prevent overheating. The bi-metal switch also cuts the igniting pin. There are three pins on the mercury lamp, two are for main power and one, very close to one of the power pins, provides a smaller spark gap. A resistor inside limits the current between the igniting pin and the neighboring power pin. Nevertheless, four darn kilowatts pushed in a 80w lamp is IMPRESSIVE! I can already see some applications for short bursts of such power! Strangely, it reminded me about my electronics teacher and how he used to get a tan on his face on the UV mercury lamp :))
***** There is not one Mercury Vapor Lamp that doesn't have a bimetallic strip. Maybe the self ballasted type but you spelled out "MBF"... Never heard of that. Must be a new google search term. Pulse start metal halide's don't have the starting electrode but that would spell out PSMH. Oh well, waste of time thread anyways. Hoped this helped you to realize you are trying to teach me a topic that I've studied my whole life. Carry on though and maybe I can learn something. Not trying to be a dick I just hate disinformation.
Good video, the other issue it does affect is usable life and total life specification aside from temperature and lumen output. It also shows that the outside envelope didn't rupture and means this lamp is very safe so no red hot perhaps molten quartz glass that is typically used with arc tubes at the power range you were operating at.
This is why I will always keep using mercury vapor lamps! They are efficient (though the beaureaucrats and lobbyists that want us to use fragile, trouble prone, and not particularly efficient LED's, would disagree, (but remember, politicians brains are still in their butts!), reliable, and have excellent lumen maintenance (about a thousand times better than LED junk!) and are SAFE! The only possible hazard is UV exposure if the outer envelope gets broken and the lamp continues to operate. Otherwise, they will NEVER be beaten for general lighting outdoors and in hibay indoor applications. Funny, they stuck HPS up our arses, and they were and are incredibly ugly and unreliable, and the ballasts are lossy beyond belief, negating any efficiency gains over mercury vapor, then we are forced even LOWER by forcing awful LED's on us, which are nothing but gadgets--semiconductor electronic devices, and NOT light bulbs, and still, mercury vapor lights from the 1960's that are still in use, often with the original bulbs are still burning quite brightly today! And 270 watt LED units replace 175 and 250 watt mercury vapor, saving nothing and putting out less light, and cannot hold a candle to 400 and 1000 watt mercury lamps. SO---what is the point, other than to make us remove perfectly good mercury vapor lights so lobbyists can get companies I've never even heard of just 2 years ago, likely made in China, to "force" us to LED's because they don't like old mercury vapors because they last too long and "get in the way of profits!" Nah--I'll keep my old mercury fixtures and my 1940's through early 1970's preheat type fluorescents and laugh at the people who had LED's subsidized and had them fail shortly after installation! Great clip, and now I have even MORE respect for these venerable light sources! Cheers!
I love the various light bulb techs (I'm a huge fan of MH lamps and their high CRI) but your being silly about LEDs. I can carry a flashlight the size of a pack of gum that puts out over 500 lumens from a 1.2v NiMH cell and won't set my pocket on fire. Cree XML LEDs (An American company) put out over 170 lumens per watt!
I have a mercury light in my backyard that's 75 years old and still has the original bulb in it and still works. Use it every night. Runs up my electric bill tho
I have run a similar lamp off of a 175 watt ballast. While it fired and run, it didn't last but 36 hours or so before the arc tube ruptured. Note: HID lamps in the US use the same base as the equivalent wattage incandescent, but usually a 120 volt branch circuit will not fire an HID lamp. 150 watts and below use an Edison Medium screw shell, and 175 watts and above use an Edison Mogul screw shell. However, some crossover is also available, namely 70 watt HPS with Mogul base.
That's interesting to learn-I don't think there's a clear standard on the fittings in the UK but these days most have a Mogul base. This was a 'self-igniting' lamp and would strike up on any ring or branch circuit, so it's useful to have a completely different fitting.
DanTheAwesomeMan The "self igniting" part is what we often call "probe start." The "pulse start" lamp doesn't have the starting electrode, and relies on high voltage to strike the arc. They're supposed to be more energy efficient. You can use a probe start bulb in a pulse start luminaire (fixture). Also, have you tried using High Pressure Sodium in a pulse start metal halide?
You know those UV radiation exposure pads that you get with some sunscreens for free ? Or that kids can wear outside . They change colour in UV so u know if youve been in the sun too long. Can u do this with those things on the table to see if you can blast change them?
Years ago when i was a young boy my dad shown me the mercury vapour lamp. I wanted to see how it lits so we connected it to the mains and... We blown the fuse. My dad thought it was shorted. We didn't knew they have negative resistance :-D
Must be nice owning one of those variable output ballasts... Don't know why, but I became infatuated with arc lamps as a kid. Can remember popping my first 175 MV lamp in my little workshop and I must have been barely twelve. Ah the memories. Great video and am amazed she held up to 5000 watts. Wonder if any X-rays are evolved at those cathode temps?
Holy smokes an actual respectful reply for a change. Forgive me, I'm sorting through the piles of useless drivel in my inbox and read this.. :) It takes what 75kV in an ordinary X-Ray generator? I wonder the voltage threshold for this effect that you just just mentioned "Bremsstrahlung" and no I'm not being sarcastic. Normal electronic ballasts can easily generate 3kV though and hot strike ballasts can generate 50kV like a walk in the park. For some reason I thought cathode temperature played a roll and I wouldn't be surprised at all if over clocking a bulb like this generated X-Rays.
I recently put a 175 watt mercury vapor bulb into a socket that was directly wired to the outlet without any ballast. It sparked, flashed, then quit working. I then put it back into the fixture with the H39 ballast that it is supposed to run with and it didn't start at all, but once and a while, a minute flicker would occur.
How to overclock a light bulb.
Haha!!
This isn’t your Search bar mate
Hahaha 😂😂😂
I actually have a alarm clock next to the couch with a built in light
@@jaredschwerdt7917 how much mhz or watts in this case
your neighbors must be like "Why is he creating a sun?"
That made me 😂
You apparently haven’t seen a 20k watt lamp, lol
@@TalonGamingNetwork ill check that out thanks
You should watch photonic induction
Thanks for the laugh.
Mid summer's day? Hell about being next to an Atomic Bomb flash. Did your shadow get burned into the wall?
GEN.Z fuck off
@@RayTC the ride never end , get fucked
Mid summer's day at first planet orbiting "O" class star like 10 Lacertra :D
That’s the only reason we have a picture of our great grandfather who lived in Nagasaki during the end of ww2
How about* you can buy me some money and then ill join the free game if ya can join me then I can buy you a free game
Moth: *damn that's the brightest lamp I've ever seen*
R.I.P. moth meme
The moth may have mistaken the bulb for a nuclear bomb
[ Painty ] Ironically entomologists actually use these to attract flying insects like moths
Låmp
I want that in my bedroom ;)
"At 5 kilowatts, the lamp blew" why not green?
XD
Lol.
Because it's not orange, d'oh !!!
God damn it Jozie
...
How your phone looks at night
Enable your phone's automatic blue light filter (or install Twilight if it doesn't have one) and your phone won't look like the sun at night anymore.
@@Psythik He was just joking. Sorry if you already knew just thought i couod6 help out
@@Psythik r/wooosh
@@Psythik It still looks like the sun to me with thess configs :/
Or morning
Well it does explain what keeps happening to all my coconuts.
aaai don't get it, you pushing current through coconuts or what?
i make numerous mistakes r/ihavereddit
They migrate by swallows
Me: Time to sleep
Midnight recommendation: Mercury explodes
Excellent video. That was 3 Quid well spend, amazing how much overload that lamp took. Commentary top quality. Keep those video's coming.
that is, indeed amazing,i wonder what would happen if you did that to a VFD?
RODALCO2007 3 Quid for the lamp, but imagine what it did to his power bill.
RODALCO2007
I but it could handle a couple hundred watts with nothing more then reduced lifetime.
That lamp was really tough, I was surprised as well.
@@InsaneFirebat Only running it for a short time, less then 1 p.
_Electrical bill is typing..._
😂 New TH-cam meme coming up 👍
In Hungary 5kW load that runs for 1hour cost about 0.50£
@@vadaszmate1400 my dad : I am going to Hungary
@@vadaszmate1400 What is the cost of electricity now?
And 3 years later, electric bill is still typing the cost from that one hour experiment.
This is good if you want to kill moths flying arround your *lämp!*
This thing gives cancer to all moths within a mile radius.
Sometimes too much of a good thing is a bad thing.
😂😂😂
Can you circle it?
Your icon is how I be watching this video
Moth: Mom can we have some light
Mom: We have light at home
*Light at home*: 2:38
underater comment
The thing at home is supposed to be worse in this joke, not better lol
You mean 2:44 ?
Darude Sandstorm
@@Engineer9736 what??
Made in Germany. Jaaaaa
Er hat eine von unseren tausende Lampen zerstört :(
Robin Yoyoyo Hat er, was solls passiert
Germans make good stuff. That lamp went over 60 times its rated maximum wattage potential without blowing. Now that's what I call safety for a lamp that contains Mercury which is dangerous.
@@DordiHOTS *wattage
@@miralemnermina142 Good catch lol! I was tired when I wrote that.
That lamp is brighter then my future
Cmon dude see the bright of your future
that lamp is brighter than my past
Just came across your video. That experiment should have been done with UV blocking goggles. All lamps produced UV by nature and the amount that you generated can and will produce cataracts and other permanent eye damage. Also I would highly recommend having a clear shield of lexan around the test in case of catastrophic failure. Had it exploded you would have been showered with white hot quartz fragments. I've worked in many labs prototyping equipment so I speak from experience. One last thought, that is a hell of a ballast to take that kind of abuse. I would name this the sun photosphere simulator.
Here is something to look at: th-cam.com/video/pnx22ZPjleQ/w-d-xo.html
Sir! That was absolutely pure insanity! Especially that dodgy solid aluminum fuse. I'm honestly surprised that the glass didn't melt in that white-hot temperature. Very, very interesting!
“Mercury Lamp”
Ah yes...he reaches _200 degrees_ and that’s why they call the lamp _Mr.Fahrenheit_ when _under pressure_
I've ran 175w HPS off 1000 watt ballasts for hours on end without them giving up. Brilliant sunlight white light and the whole lamp outer shell glass was glowing dull red when shut off.
Often pondered on putting the inner arc tube inside a polished aluminum water cooled tube with a lens set on the one end to make a 'white light' laser of sorts with it.
People with their giant LED flashlights suddenly look ridiculous now.
A real bisexual petrol-head oh shit oh fuck
@A real bisexual petrol-head you are stupid ARC lamps are ancient tech as any idiot with enough power can make anything into a light bulb
People with LEDs have always looked ridiculous especially those drivers with there big LED bars on there truck.
@A real bisexual petrol-head So? People still drive Petrol cars over Hybrids and EVs. Incandescents may be inefficient and only last 1000 hours, but they have the highest CRI (colour rendering index) 95/100. LEDs can only go up to 90 and most only do 80 which is not bad compared to Flourescent Tubes and CFLs which do 40.
@Richard Vaughn Where is a good place to get them?
Good chance this bulb was manufactured in my hometown (Augsburg, Germany) just a few years before our OSRAM facility was bought by the Ledvance company(along with the brand and all other facilitys) and then, after multiple decades, was closed recently and is currently beeing demolished. Nice to see it here, makes me remember the better times.
I'm sure there's a permanent shadow of him on the wall afterwards. I hope he was wearing sunglasses 😎 all that crazy amount of UV blasting at him.
Sunglasses LOL
I have a 400 watt blacklight one and running it at its rated power absolutely hurts my eyes even with sunglasses on.
I have to wear ski goggles if I want to look at it at close range given how powerful it is.
I would really like to cast a permanent shadow on a wall though.
Obviously I can't use nuclear power to do that and my 400 watt mercury vapor bulbs aren't nearly as powerful enough to accomplish that.
Maybe I'll need several photo studio flash units or someting similar ?
Any idea ?
Thank's.
Good Lord! I hope Dan isn't blind and radioactive now. The earth out shined the sun for a minute. Tzar bulba! 😎
I hope you were wearing sunblock because the UV rays from that at those levels must be staggering.
The outer envelope usually blocks most of it, just not sure how well it works at 6000% power...
DanTheAwesomeMan Maybe the reason for the 80 W rating is the outer envelope! LOL
What UV rays? most of mercury radiation is at lines of 254 nm and a little bit of 185 nm, mostly absorbed by the phosphor coating and what gets past absorbed by outer envelope glass. Even suntan UV lamps block UVC and UVB.
@@TheAwesomeManDan Though having said that, increasing pressure spreads out the emission spectra over wider range,
Great test though, love the bypass for that pesky 13 A fuse spoiling the fun.
Yay UV overexposure!
Does the NHS cover self-inflicted cataracts?
Noone will know about the cataracts' source
'Sir have you been staring into a sun for long periods of time?'
"No"
'Then what caused those cataracts in your eyes?'
'I was overclocking my lightbulbs'
I think I have these lamps at home, in three years I'm yet to see one fail
How bout now?
now?
Now?
?Won
How about now
Wow I would have never imagined that bulb would have withstood such a high voltage. Thank you for this video very informative.
"UNFORTUNATELY the envelope remained intact" 😂😂😂
Dude, you have such a soothing, mellow voice. You should be an Audible voice-over. Falling asleep just listening to you 😴
This dudes single bulb experiment used more power than my house does in a month lol
The day this was recorded there was nationwide absence of moths.
I've always wondered about that, thanks Dan you do awesome work!
Its because Mercury is the only metal which actively builds and creates a resistance on its surface, acting as a varistor, and when you consider the old arc rectifiers, those things could handle unbelievably immense amounts of electricity.
You would also find that as the current increases the voltage drop remains the same throughout the whole climb to 5kw where it bursts
Mercury arc rectifiers were kinda ballasted by the load that was connected to them, therefore they weren't directly connected to the power without any limit.
Try connecting a mercury vapor bulb directly to the mains without a ballast and see what will happen.
Or I should's say don't do that.
It will explode and send sharp shards of glass everywhere as well as toxic mercury vapor in the air.
0:44 "Kind of like a coconut 🥥 "
2:43 pov you are driving during night and some idiot with chinese leds comes from opposite lane
Lots of UV coming from that at those high power levels.
The sheer amount of uv thats coming off of that. Even half value layers aint gonna be enough to make those not dangerous
Mostly UVA.
Dangerous enough to cause eyestrain and headaches but thankfully no sand in the eyes or sunburn unlike UVB and UVC.
Dan...i love your channel...you select interesting yet obscure subject matter which happens to be a winning combo with most people....your vids are a concatenation of mind - blowing amidst the mundane..a lot of mind blowing details about familiar subjects...i think success is on its way to you...i hope it is as it is well deserved...
Good luck :-)
Thanks for this. Until now I was afraid to run my 150W lamp at 200W but I see it's no problem.
> When you are so obsessed with performance that you overclock your light bulb
FANTASTIC STUFF. Very interesting. Thank you Dan for sharing your gained knowledge.
"Osram" means "I will shit" in polish...
and you put that on the ceiling :|
Yeah, kind of old joke actually.
confirm.
:'(
Daduch Yeah i know, in belarus we have a very similar word to that
It also means "the ram" in Portuguese.
6000watts. I am more than a little intrigued. This little experiment was just astonishing, and I love the descriptive voice over. The Ignitor Capacitor for a 1000W HPS ballast produces some 4-5 kV in order to strike the arc. The 1000 watt sodum tube is I'd guess at least 8" long between the two electrodes. FIrst the mercury is entrained into the voltage discharge and heats up. Then the sodium metal becomes gaseous and it too becomes part of this plasma.The ignitor then takes a backseat, and reacts less as the bulb comes online - resistance becomes negative its burst of high volt spike become minuscule but never die off completely. The bulb then is running on the transformer secondary windings alone. I cannot test any of the process with my gear, but would love to fool with the output of the Ignitor
It's one of the reasons a MV lamp lasts so long.
In theory an LED should have comparable life. But the delicate control circuitry is often first to fail.
A MV lamp and wire-wound ballast can't be beaten for durability.
Yes and also the LEDs themselves don't take much abuse, especially if not properly heatsinked. Delicate semiconductors they are.. Sure the capacitors in the control gear are first to tire from long term heat.
Wow Dan that really is Awesome. Thanks for sharing
I think I know why the glass envelope survived. When you switched it to 5kW, it was broken more from the thermal shock. Note how it broke almost instantly. It didn't break from overpressure. Though the pressure inside was already at the level of a standard warmed up lamp, which exceeds outside pressure, that pressure is not enough to create a completely destructive explosion when it fails. So you destroyed the inner tube with too much heat and the pressure escaped. The pressure really didn't have a chance to build. Your bulb was rated 80 watts. Next time, try running it at 1000W for a hour, and see how long it lasts. Notice that when you used 1000W in this video, it didn't instantly destroy the inner tube. That meant the thermal shock of switching to 1000W was not sufficient to shatter the inner tube. So that means it would have held its structural integrity at that level of thermal shock, and the gas could have been heated to a MUCH higher temperature if left running at 1000W than it ever did at 5000W, because the tube wouldn't immediately break and release the gas. I predict that at 1000W it would hold for several minutes, eventually failing due to OVERPRESSURE (not thermal shock), and at the kind of pressure needed to rupture that inner tube (which is built sturdily to withstand a LOT of pressure) when the tube burst, the flying shards of the inner arc tube would be propelled so violently by that pressure, that they would attain very high velocities before striking the outer envelope, which would in turn cause them to strike that envelope with extreme force, causing that outer envelope to shatter.
So yes, in some cases, less can be more. Less power to the tube means a more violent explosion, because the pressure is allowed to build up more before the tube shatters.
Please try this experiment again, but this time don't go over 1000W. Stop cranking up the power at 1000W (or maybe even a bit less, like 750W, and just let it sit there for an hour (or however long it takes for the tube to burst). I think you will be quite happily surprised, as you will find that you will get the results that you attempted (but failed) to get in your first attempt at the experiment. And I personally will have my curiosity satisfied. I've always wanted to know what a mercury vapor lamp explosion looks like, without having to do such a dangerous experiment myself (because I don't have any facility like you do, where you can safely blow stuff up for fun). I've always read warnings on boxes for Mercury, Sodium, and Metal Halide arc lamps, about always using the EXACT ballast (not even a little more power or a little less power) for your bulb, as failure to do so can cause it to blow up. Ever since reading such a warning, I've always been curious what such a bulb explosion would look like, but haven't ever had the courage to test it myself.
So maybe you can do it for me in your next video,.
I doubt the small thermal mass of the gas inside the small tube (and even the glass tube itself) wouldn't have already reached its terminal temperature and pressure on 1000W within seconds.
Not that I wouldn't be just as curious as you to see what would happen with prolonged lesser overdrives ;)
@@TheSimoc Plot these on a map: th-cam.com/video/pnx22ZPjleQ/w-d-xo.html
I have to say his voice is very smoothing, I could listen to it all day
This was even uncomfortable to look at on a phone lol
In the US, most of these lamps come with Mogul screw bases. It IS possible to insert them into the wrong fixtures. Placing it in a higher or lower wattage fixture leads to short life. Low ballast current usually leaves it glowing all weird - pinkish or bluish.
2:36 SOLAR FLARE!!!!
Insert lewd image
this channel is like a satisfying blend between bigclivedotcom and photonicinduction
As photon would say: "crank it up till it pops!"
I always have laugh when watching lamps get super bright. it takes me back to the time when regular bulbs could be bought here and they like mounted in a work light gets dropped and you are stunned by the light as it glows dead a while later, but to see this was kinda epic lol
+Physics & Stuff In our country (what most people call) "a regular bulb" with filament is forbidden these days and we may only buy LED or Energy saver bulbs. at the most there are some but not all kinds of halogen bulbs available now...
+Physics & Stuff Lucky you :) not even 15 watts bulbs can be bought here anymore, only halogen types with a little lower watt than the replaced type you may get, also you cannot buy halogen bulbs with frosted glass, only clear as the frosted ones also got forbidden and they don't give the same types of light :/ the LED can have non clear cover that spread the light better but they also don't give the smooth light as the frosted regular bulbs did. sigh
+Physics & Stuff I live in Sweden :)
+Physics & Stuff I see. maybe it will come to that were you live too in the end
+Physics & Stuff It would be fun to see that lamp of yours, if you upload it to your channel I will check it out :)
I was hoping someone would try something like this. I always wanted to see what would happen if there were no ballast.
Another awesome invention from Germany. Good video.
Is this the geico geckos dad? Lol
Absolutely love this video. Just subbed!
To explain how bright that light is, it's as bright as your regular lights are after sleeping in pure darkness for 8 hours and then you turn the lights on to use the bathroom in the middle of the night.
Coconut bombs- an environmentally friendly alternative to nail bombs.
They build it to stand so high a power level to make it durable. The bulb can take 4000 watts, but for how long? Underrate it at 1000 watts and it will survive for months.
Same with engines. Your family car engine could make far more horsepower with some induction and exhaust mods, but at the cost of a shorter life of engine parts before failure.
Top fuel drsg racing cars are the extreme example of that.
This brand name "osram" means "I will make poop on this" in Polish
that solid al fuse is brilliant :)
So... Let's see how long it can survive with 800 Watts! And what about 4000?
If it lasts for over 1 minute while pushing 4.000, there can be actual uses for it.
But the amount o UV it emits most probably would outweigh the "actual uses"
Mom: Why does my phone's battery dies so quickly?
Mom's Phone: 2:24
This heavily reminds me of the power a star or the sun undergoes.
Imagine you trying to sleep, but the house next to you is trying to create the sun manually
And your retinas would probably be irreversibly completely toast the moment you go to investigate why this is happening.
i got one of these on the wall outside my house, if i turn it on and let it on for a couple of minutes and switch it off and on again, it won't start for about 10 minutes. why will it act like this?
This often happens because the igniter cannot supply a high enough striking voltage to overcome the extremely high pressure in a hot lamp. The lamp just needs to cool down again before it can re-ignite.
+DanTheAwesomeMan Flawless answer.
+DanTheAwesomeMan Some have a bi-metal switch inside to prevent overheating. The bi-metal switch also cuts the igniting pin. There are three pins on the mercury lamp, two are for main power and one, very close to one of the power pins, provides a smaller spark gap.
A resistor inside limits the current between the igniting pin and the neighboring power pin.
Nevertheless, four darn kilowatts pushed in a 80w lamp is IMPRESSIVE!
I can already see some applications for short bursts of such power!
Strangely, it reminded me about my electronics teacher and how he used to get a tan on his face on the UV mercury lamp :))
+fla playa Not quite. Mercury (MBF) lamps don't have an ignitor.
***** There is not one Mercury Vapor Lamp that doesn't have a bimetallic strip. Maybe the self ballasted type but you spelled out "MBF"... Never heard of that. Must be a new google search term. Pulse start metal halide's don't have the starting electrode but that would spell out PSMH. Oh well, waste of time thread anyways. Hoped this helped you to realize you are trying to teach me a topic that I've studied my whole life. Carry on though and maybe I can learn something. Not trying to be a dick I just hate disinformation.
All the moths in 16 kilometer radius: Swiggity swooty, I'm coming for that *LAMP*
2:36 Honey, turn the sun on please..
Wonder which part failed. 🤔
Probably the arc tube.
NO! FUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUCK!
A 30 SECOND AD THAT I CANT SKIP!
THE GOVERNMENT IS WATCHING US
Adblock or uBlock origin comes to the rescue.
see I was pretty stupid 4 years ago
No.
🤣🤣😂
Do the same thing with a high pressure sodium bulb
Mady in Germany...
*_Hergestellt in Deutschland_*
Fabriqué en Allemagne
@@IXIskarfaceIXI I wish i would speak another language :(
Of course.Western Germany.
Good video, the other issue it does affect is usable life and total life specification aside from temperature and lumen output. It also shows that the outside envelope didn't rupture and means this lamp is very safe so no red hot perhaps molten quartz glass that is typically used with arc tubes at the power range you were operating at.
Today kids I'm gonna show you how to make an artificial sun
so the moon landing was fake they used 100kw lamps back then aka the night sun
Bloody good effort mate
AMD: Challenge accepted! Kappa (no h8 for m8)
We have these kind of lamps with standard E27 base available in Estonia.
Warning... core overheating, nuclear meltdown immident!
Rule of thumb: don’t mess with mercury vapor lamps and try to over clock them!
lack of cooling system on the envelope, that's all
@175 H.I.D. Yes obviously there isn't as it's not intended to be used at 5kW, but in order to make it not fail you'd need one.
No. Because you can't cool the inside of the bulb so you can't stop pressure buildup.
2:36 When you walk into the gas station after driving in the night for 3 hours
Trump: "No, turn those lights off!"
That damned coconut reminded me of why I hate smoking fish: it's hard to keep lit!
This is why I will always keep using mercury vapor lamps! They are efficient (though the beaureaucrats and lobbyists that want us to use fragile, trouble prone, and not particularly efficient LED's, would disagree, (but remember, politicians brains are still in their butts!), reliable, and have excellent lumen maintenance (about a thousand times better than LED junk!) and are SAFE! The only possible hazard is UV exposure if the outer envelope gets broken and the lamp continues to operate. Otherwise, they will NEVER be beaten for general lighting outdoors and in hibay indoor applications. Funny, they stuck HPS up our arses, and they were and are incredibly ugly and unreliable, and the ballasts are lossy beyond belief, negating any efficiency gains over mercury vapor, then we are forced even LOWER by forcing awful LED's on us, which are nothing but gadgets--semiconductor electronic devices, and NOT light bulbs, and still, mercury vapor lights from the 1960's that are still in use, often with the original bulbs are still burning quite brightly today! And 270 watt LED units replace 175 and 250 watt mercury vapor, saving nothing and putting out less light, and cannot hold a candle to 400 and 1000 watt mercury lamps. SO---what is the point, other than to make us remove perfectly good mercury vapor lights so lobbyists can get companies I've never even heard of just 2 years ago, likely made in China, to "force" us to LED's because they don't like old mercury vapors because they last too long and "get in the way of profits!" Nah--I'll keep my old mercury fixtures and my 1940's through early 1970's preheat type fluorescents and laugh at the people who had LED's subsidized and had them fail shortly after installation! Great clip, and now I have even MORE
respect for these venerable light sources! Cheers!
I love the various light bulb techs (I'm a huge fan of MH lamps and their high CRI) but your being silly about LEDs. I can carry a flashlight the size of a pack of gum that puts out over 500 lumens from a 1.2v NiMH cell and won't set my pocket on fire. Cree XML LEDs (An American company) put out over 170 lumens per watt!
+ricksbulbs No possible hazards except for UV exposure|? I guess you are ignoring the fact that mercury vapor is one of the most potent neurotoxins...
*Engage tinfoil hat
+Regenas if it breaks - yeah. but will it break?
ricksbulbs waiting 2 minutes for full light is not a problem for you, yeah you can use mercury lamp everywhere.
wow that's a really high quality lamp!
this lamp draws more power than a hypercar
Absolutely not.
Funny how safe this was considering it shows just how much engineering was put into it.
I have a mercury light in my backyard that's 75 years old and still has the original bulb in it and still works. Use it every night. Runs up my electric bill tho
"Arrogant little bulb" what a great insult lol
I have run a similar lamp off of a 175 watt ballast. While it fired and run, it didn't last but 36 hours or so before the arc tube ruptured.
Note: HID lamps in the US use the same base as the equivalent wattage incandescent, but usually a 120 volt branch circuit will not fire an HID lamp. 150 watts and below use an Edison Medium screw shell, and 175 watts and above use an Edison Mogul screw shell. However, some crossover is also available, namely 70 watt HPS with Mogul base.
That's interesting to learn-I don't think there's a clear standard on the fittings in the UK but these days most have a Mogul base. This was a 'self-igniting' lamp and would strike up on any ring or branch circuit, so it's useful to have a completely different fitting.
DanTheAwesomeMan The "self igniting" part is what we often call "probe start." The "pulse start" lamp doesn't have the starting electrode, and relies on high voltage to strike the arc. They're supposed to be more energy efficient. You can use a probe start bulb in a pulse start luminaire (fixture).
Also, have you tried using High Pressure Sodium in a pulse start metal halide?
You know those UV radiation exposure pads that you get with some sunscreens for free ? Or that kids can wear outside . They change colour in UV so u know if youve been in the sun too long. Can u do this with those things on the table to see if you can blast change them?
Imagine how well the plants would grow under that bright of a light.
Nah, they’d probably spontaneously combust due to the heat 😂😂😂
"Moooom, uncle Dan's trying to supernova again"
Years ago when i was a young boy my dad shown me the mercury vapour lamp. I wanted to see how it lits so we connected it to the mains and... We blown the fuse. My dad thought it was shorted. We didn't knew they have negative resistance :-D
I will never look at my vapor light the same ever again.
please make more videos! I love watching them!
Brilliant, great video. Thankyou
Must be nice owning one of those variable output ballasts... Don't know why, but I became infatuated with arc lamps as a kid. Can remember popping my first 175 MV lamp in my little workshop and I must have been barely twelve. Ah the memories. Great video and am amazed she held up to 5000 watts. Wonder if any X-rays are evolved at those cathode temps?
Holy smokes an actual respectful reply for a change. Forgive me, I'm sorting through the piles of useless drivel in my inbox and read this.. :) It takes what 75kV in an ordinary X-Ray generator? I wonder the voltage threshold for this effect that you just just mentioned "Bremsstrahlung" and no I'm not being sarcastic. Normal electronic ballasts can easily generate 3kV though and hot strike ballasts can generate 50kV like a walk in the park. For some reason I thought cathode temperature played a roll and I wouldn't be surprised at all if over clocking a bulb like this generated X-Rays.
I recently put a 175 watt mercury vapor bulb into a socket that was directly wired to the outlet without any ballast. It sparked, flashed, then quit working. I then put it back into the fixture with the H39 ballast that it is supposed to run with and it didn't start at all, but once and a while, a minute flicker would occur.
his voice is just so perfect
When he started cranking up the power, the way he was talking made me feel like I was watching a Chernobyl documentary