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Hacking fake UVC germicidal LED lamps.
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- เผยแพร่เมื่อ 8 มิ.ย. 2020
- This video was originally going to show how to identify fake and real germicidal lamps on eBay, but randomly ended up as a technical video instead.
Both eBay and Amazon are flooded with fake germicidal lamps that are either just near UV (violet), a bright pastel blue designed to emulate the visual spectrum of mercury vapour tubes or in this case just a plain blue LED lamp.
They're still interesting colours, so I decided to modify a couple to reduce their power rating to extend the life of the LEDs and power supply components.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.com/coffee.htm
This also keeps the channel independent of TH-cam's advertising algorithms allowing it to be a bit more dangerous and naughty.
Nice how they make the spirally lamp self-dismantling for ease of modification... :D
Thanks BigClive. I got my money back on the one I bought due to your videos.
Send that received money to Clive :)
No need to do that. Spend it on something nice instead.
@@bigclivedotcom think of the coffee ;)
Same
"this is constructed quite well"
Literally comes apart when unscrewing it
Lol
It was designed with Clive in mind. Easy disassembly.
Lol, you and all those who upvoted this thinking that difficult disassembly is a hallmark of quality are all idiots.
I lost it when you unscrewed that lamp and it just fell apart 🤣
I have often wished that these "better" name brand ones would also have that easy access feature in them :)
Ben Baselet 😆
Immediate lol.
Sijuper dodjeeeey! ©
@@benbaselet2026 In the old days, similarly constructed lamp holders had a small springy tab on the copper that we had to press to unscrew the innards. This was only accessible after unscrewing the lightbulb so no additional danger. All the mechanics were moulded into the moulded parts and stamped into the stamped parts for near zero cost. Tab would wear out after about 10 disassemblings, which is enough for repairs.
Thank you big Clive. I was considering getting a led UV sterilization lamp thanks to your videos I decided not to.
It's amazing how due to this pandemic people would buy these which have no protection from any bacteria or virus whatsoever and that makes them incredibly dangerous and indirectly you might have saved some lives.
A big thank you to you and take good care of yourself.
On the other side of the spectrum you could get someone panic buying the real lamp but not knowing anything about UVC and going blind or developing severe sunburn from it .... Its sadly probably better that the stupid people get the fake stuff because UVC is nasty if you use it without proper eye and face protection.
+Mike Loeven Bizarre ER has an episode about a mystery ailment at a restaurant which was causing all the kitchen staff to start experiencing terrible eye pain and blindness, and it turned out to be the UV bug-zapper which was burning their corneas. Not sure if the channel blocks URLs, but search for "Restaurant Kitchen Mystery" and you should find the episode up on TH-cam.
Somewhere in China "Shall I glue this?" "No, big clive going to pull it apart anyway." 😁
Meanwhile in Apple's factory: "Glue EVERYTHING!"
LMFAO !! ....yep
It's been quite a while since we've had a good explosion.
'Eee Ain't been Popping it !
bokk you got my hopes up! I thought the last one was gonna kersplode!
Hey Clive, is there a video on the interwebs where you actually get shocked by the capacitor? I'm not a sadist but you must of been caught out some time or another :)
Had an ad for UVC lights! Hilarious.
Monte Stu Same here, left a comment describing it.
Opened quicker than the lock picking lawyer
Lpl AvE Big Clive instant like and watch
Love that guy!
i'm glad you made the videos calling out those, cause one of the big ones showed up at my work. fortunately the stupid of my co worker cancelled it out, and no one went blind
Clive I am on patreon (I am not sure how much longer due to my health and not working) love the livestreams & you aren't kidding. The chat flies past.
I've seen some semi-fake corn cob uvc lamps on Amazon, where they have hundreds of either blue or uva LEDs and about 4-5 actual 100mW uvc LEDs spaced out around the lamp. Cunning.
I bought one recently from AliExpress with 6 real UV-C+UV-A hybrid LEDs, but they're definitely not 100mW... More like 10mW, it barely made a banana slightly darker after 30 minutes or so if point blank exposure. I modified mine to disconnect the UV-A LEDs since they're not so interesting and blindingly bright in comparison. Had to lower the drive current too since they were both in parallel (well 2 series UV-A per UV-C).
Got mine tonight. Not done the banana test yet. Did the bedroom overnight and it does indeed stink. Love the vids Clive , even the deadly funnel beard one!! Lol
When I changed really old incandescent lightbulps in my grandmas home, the bulp came out in one peace, but the threading on the E14 lamp remained in the socket. The plaster like material they used had given up over the jears. Same issue with the ones that used something like resin.
An old cork or an eraser is a useful tool for removing the bit that's still in the socket, having made very sure that the supply's switched off. Old corks are preferable, as you need to open a bottle to get one.
I have had Edison screw lamps so corroded in I had to peel them out with long narrow nose pliers, needless to say I replace with BC at every opportunity.
@@tonywalton1464 I always go to the braker board, switch it of, check with the multimeter an then use my finger or tweezers.
@@kommander9638 a wine cork saves your fingers
I always just stuck the bulb back on with Super Glue or epoxy, then unscrewed it when it had hardened.
Some conventional Bogao lamps tend to have bases and plastic 'glass' which screw on, which presumably makes it easy for them to churn out the same lamp with different bases (B22, E27, E14) and tops. The ones I have are nice enough to have a transformer and high frequency output (so not a trace of flicker when pointing a camera at them).
Oh crap I almost got sick watching you try to get the lens/cap off of that lamp
I just kept imagining it exploding in your hands great video bigclive
I kept suspecting another threaded assembly.
Not bad, not bad at all, these lamps look quite nice to use as decorative lamps, especially when they are run at lower power :).
P.S. I've got a broken E27 LED that came in a job lot, if you want it for teardown purposes then yoou're more than welcome to it :).
This was when your videos started becoming popular again
Great channel, the best pull it apart and see what's inside videos on the tube.
Ps. How many mains voltage surprise shocks have you survived?
? Designed to set on fire and kill the virus that way .... A bit harsh ?
Hahaha
it's a new sanitation protocol invented in China called IMS (Incineration Mode Sterilization). The next logical step up from autoclaving.
All lamp i sell
I have the same “tanning” mercury vapor lamp that was used in the movie Bugsy. It uses tubes and really puts out a lot of ozone.
Like unwrapping a present. Thank you sir.
The first one that (fell) you took apart reminds me of Dr McCoy's medical scanner. :)
thats a really interesting flexible circuit board!
I got a UVC light ad on this also very interesting video
It’s due to the tracking I bet you’ll get ads elsewhere for UV lights especially commenting about it if u haven’t already
I got the real deal because of your educational videos.
2:20 happened to me once except the driver wasnt wrapped so... that was fun xD
Edit: Those chips seem to be getting more and more clever. Rectifier, capacitor, inductor, sense resistor and thats it? Not bad.
The gift that keeps on giving - is called Big Clive!
Was just at a distribution center in St. Cloud, MN USA that appeared to have some UV-C lamps all over the place... They DID have a white coating on the bulb, but it was definitely that icy blue color of the UVC bulbs, and absolutely, 200% NOT colored LEDs.
I'd share the photographs I took, but alas, the old toober doesn't allow it...
I was curious if I could use a hakko Japanese 100v soldering iron in the US without any problems. From my research, it may run a little hotter. But I won't risk fires or anything bad right?
Probably with a switching-supply?
Don't know if Hakko makes fixed soldering-irons without any control? If you have just a heating-coil it will run probably very hot, like glowing-hot when surrounding-temperatures are high enough. I have some older soldering-iron that is giving light when I plug it in, designed for 220V but here we generally have around 238-240 Volts if everything works right (this week sometimes only 200 though). Works for a while... and then blows itself and might blow a fuse or other protective things in your house if you are lucky (would not recommend using it unattended).
After measuring the SMD resistors, did you mark them with their value on the tape? :-)
Recently bought a small UVC sterilizing box from China to disinfect face masks. Used Clive's "banana test" to be sure its LED's really put out UVC. Although the UVC LED's in the box were not as powerful as the wand he used to tan the banana, it worked. However, the color change did not show up until the next day because I used a ripe banana instead of a green one. I bought it from eBay. The company name is "59S". Not everything made in China is a rip-off. But "Buyer beware."
Perhaps there's a model that includes an ozone generator and that's why the via in the center is connected to live - for the corona discharge needle?
Love it
I have just purchased a 60watt led UvC globe from a company called UVCGermicidal in Australia and now wondering if this if fake. The unit only draws 12.8 watts so I am a bit suspicious - are there any others ways to test out this bulb?
another good video
Think that color is called deep sky blue. I use it on smart lights sometimes.
Nice video
SMD resistor packages: you only have to sort them ONCE, and if not, you have to do that search every time you need one, AND after that still have to do the sorting.
So if you removed the LEDs and put a 12 volt DC power source would it work as a horrible power inverter? ( well after you removed the discharge resistor) would it go bang then?
Are you thinking of powering it from a chemical battery? Well, if you want to step the voltage up, then it'd be a crude power converter, but if you want to construct something like a 240V sinusoidal power line, you'll need a good transformer (center-tapped one on its primary, I guess) and a symmetrical switching circuit.
So the short answer is «may be», but not an inverter in the sense of how they work.
We should get together as a Channel and photograph and describe all of these little PSU species to see just how many different but same versions have been created. Community project time! 🤣
Can you test the lights from RVeal?
It would be interesting to see you reverse an Acebeam X80 with the UV.
Seen the USB-C UVC LED lights being offered by places like Banggood? They look interesting but I'd hate to have to say that fast.
I've received one similar one so far (shipping within US) which is a USB powered wand with 6 UV-C/UV-A LEDs with the brass case, it is legit but such low power UV-C as to be utterly uninteresting other than as a weird LED wavelength. The electrical to UV-C efficiency is around 1-2%.
If I discharged a 2200uF capacitor on my skin what would the result be? Would i just be in a little pain, or something potentially dangerous?
It depends on the voltage.
What tool will Clive buy next for his workshop? My bet is on a lumen meter.
MrShwaggins i have dear
I remember you took apart a UV disco light that was branded as a UV-C lamp. I have 6 Hex colour LED PAR lights which have LEDs with 6 colour chips inside, one of which is a UV chip. Just imagine someone branded that as a UV-C lamp.
Where'd you get those lovely probes?
The new meter probes came with an LED tester.
Places lying about their lights has been really frustrating for getting something suitable for curing UV resin for 3D printing. You need to do a final cure at 405nm or a bit shorter wavelength and a lot of LEDs that list as 405nm or for curing these types of resins are just blue or purple and no/very little UV in the right wavelength range.
"That is on VERY tight, oh wait, it's off..."
Please, can you hack or check 59s sterilizers as well? Such as 59s.us/pages/uv-light-sanitizer-p55 (model: P26BAT). Thanks..!
My colleague: So what goes on in Clive's latest video?
Me: Nothing much...he just lets his pink and blue bits hang out...
Clive? I have a question, years ago I got a shock after touching the pins of a plug on a uk hairdryer, ever since then, every time I disconnect a plug I have to touch the terminals. I think it’s mainly so I don’t start a fire if plug touches the carpet, am I being irrational? Please help me quit my OCD. Many thanks, love your videos.
To help you quit your OCD you need to feel the urge to quit it.
I prefer using my OCD to cancel itself when I need it not, and in other cases I try making it work for me.
I do that myself. It must be the thrill of anticipation.
me too, for me the initial shock that way was from a laptop charger.
Secretly I always hope it happens, but 99% of the time it doesn't.
Happened a lot more often on old 80s/90s switching PSUs like laptop chargers or wallwarts.
It’s not OCD, it’s CDO as obviously you have to arrange everything in alphabetical order!
@@TheRailroad99 I'm guessing oversized RF suppression capacitors before the rectifiers.
With the power drop rate is the radiation or illumination drop down in the same rate?
The efficiency increases at lower power, so the intensity will drop by almost, but not quite as much as the power.
Clive, have you estimated the actual wavelength of the fake "UV-C" LEDs on this corncob style lamp? I know some are just blue, and some are just violet. But I noticed the construction of the SMD LEDs on this one have that UV window style, which I've never seen used with blue LEDs before. So I'd guess this is one that actually emits a deeper UV-A than the cheaper ~400nm LEDs? If it's around 360-370nm, it should make a good lamp for activating UV-reactive paints and charging glow powder. Can you clarify if it's UV-A? If it activates blue neon pigments as well as other neon colors, that'd determine it for sure. Thanks!
It's well and truly in the blue spectrum. Probably around 470nm.
@@bigclivedotcom, thanks for clarifying. I'm disappointed to think that I can no longer count on that large metallic backing and wide window as an indicator of
Can anyone point me in the direction of an episode in Big Clive's back catalogue where he actually discharges a capacitor with his fingers. Can't recall ever seeing it. Beginning to think he adds that every time just for dramatic effect and bit of implied jeopardy ;-) (4:47)
will modern households have a new standard voltage for ceiling lights ? why still have 240v going through the ceiling rose when we only need 12v max ?itll make LED bulbs cheaper to make because wont need a transformer as such
V=IR as the voltage goes down, so does the current. Really inefficient to distribute 12v. In the U.S. higher current devices (stoves, heaters, dryers) use 220v instead of 110v as doubling voltage halves the current and since the power companies charge per KWH (P=I^2 x R) less current means less power. Going to 12v would increase the power 10x.
@@richbooth8948 Please edit for logic mistakes. Overall point is correct and many LED lamps featured by Big Clive actually use 70V or more for the LEDs in series.
John DoDo Doe Logic mistakes?
Haha why is it not a left hand thread. Great design feature!
Because then it would just undo itself in the other direction.
@@benbaselet2026 does it even matter when exactly it falls apart if it does?)
Janus Kobain Yes, it does. If the lamp came apart when installed, buyers would like demand refunds.
@@wargamingrefugee9065 even if what I said was too serious and not funny (I obviously failed), the more comments the better.
And the flat one has live terminal exposed conveniently in the middle of the plate, so there'll be little to nobody to demand any refunds, I guess.
@@wargamingrefugee9065 just wrote a couple more comments, so now I'm feeling better.
Thank you.
Splendid Reverse Magic. Where can I get that Hopi Tester?
It's sold on eBay and AliExpress. There are other options though.
Interestingly, the ad that played before this video was for LED UVC lights!
What are your thoughts about using an e27 bulb in an e26 socket?
Do both actually exist?
John DoDo Doe The e26 socket is the 110v version of the e27 220v socket. Both e26/27 bulbs will fit in either type of socket. However, putting an e26 110v bulb in an e27 220v socket will burn the bulb out. My question is whether putting an e27 bulb in an e26 socket will result in a dimmer and less wattage producing bulb. If the e27 bulb was rated to produce 35 watts. Would it produce only half of that in an e26 socket?
@@timeless_realm Really, as the difference is within the mechanical tolerance, I would not have expected two different socket models.
As for putting bulbs on the wrong voltage: Traditional incandescent bulbs will blow on too high voltage, last longer (but dimmer) at low voltage. But the relationship is not simple, as different power changes the resistance of the filament.
LED bulbs with simple capacitive or resistive dropper (like the white one): Intensity drops almost linearly with the difference between the LED stack voltage and the (rectified) mains voltage. When this approaches zero, some dim light may remain.
LED bulbs with active regulation like the red one will light the same over a wide voltage range, above this the regulator may overheat and blow, below some light may or may not remain.
Neon based bulbs have yet another behavior.
10:03 Clearly a great attempt at separation.
Maybe this whole fake UV lamps thing is overdone by now, but perhaps you should take apart those UV phone sanitiser boxes too
I wonder if any of this lot are any good for erasing EPROMs ?
No. It has to be real UVC and the best source is usually the quartz tube type.
Bum. The tubes dont seem to be as readily available as they once were, and the cheap Chinese ones available from the likes of Aliexpress tend to arrive with the tube smashed :/
Perhaps they drive them hard so that they fail and you have to buy a new one. Also, they are impressively brighter than their competitors.
So called,UV discharge light?.
I know what that little live through hole is for. It's protection against accidental safety. If bad luck should ever threaten to render this lamp too safe, this clever bit of design will reliably restore its safety rating to acceptable Chinese standards.
Do you ever ask for a refund or ever offered a discount for wrong wattage or UVness
Clive. Can you do a series on swapping out USB ports? There is lots of proprietary ports on older devices that are still useful, but they have some stupid USB port on it. Or a missing or expensive charger or cable. Samsung's devices are the worst. They must have 50 different USB cables and ports. I'd like to swap the Samsung SUC-C3 and 4 ports and convert them to USB-A or USB-C on devices or charging docks. Even if the speed or function is restricted. At least the data and charging works. I have not found a good resource with for pin outs. What USB you can swap for what type. I don't think anyone has done this. I can send you many of the cables and some devices for the project. Left overs from hotels.
Some of the semi-recent odd shapes are USB 3.0 plugs that could be upgraded to USB-C. There's an old HTC plug that combined micro USB and headphone, not sure if USB-C headphone is electrically compatible.
I'm currently looking for one. Hard to find a legit uvc light that doesn't emit much ozone.
Ozone production is usually desirable for germicidal UVC lamps.
Instead of having to fiddle with that tiny resistor, couldn't you just splice in another (non surface mount) resistor on the wire going to the LEDs?
This is the current sensing resistor. Its purpose is not in limiting current going to the LEDs, but instead programming the control chip's output current.
Tossing resistance in the output means working against the controller, so it'll drive the output harder.
Hope this helps.
The easiest analogy, I think, would be a resistive voltage divider or a potentiometer, but only to some extent, because such control chips have their own limitations and features.
Amazon has a bunch of fake uvc lights to. Found out the hard way. Made them refund me. If it's an led type it's most likely fake
How did you solder such a small part ! ?
Flux, and a fine tip.
Clive you have steady hands and good eyes I cant do work that fine .
@@jhonsiders6077 I'd have thought the same too, but when you start playing with surface mount you get to know the techniques. Magnifying glasses and lots of flux.
Great video clive @Bigclivedotcom
Are either of those lamps CE marked? CE seems to stand for China Export these days.
There is a subtle difference between them. The easy way to quickly differentiate them is as follows: On the open (right) side of the letter “C” drop a vertical line from the top to the bottom. If the left side of the letter “E” touches this line it’s China Export. If you complete the circle of the letter “C” and the right side of this extended circle just overlaps the left side of the “E” it’s European Conformance. support.ce-check.eu/hc/en-us/articles/360008642600-How-To-Distinguish-A-Real-CE-Mark-From-A-Fake-Chinese-Export-Mark
@@theonlywoody2shoes Is this real? I thought the Chinese Export story was an urban myth grown around sloppy products with sloppily drawn CE marks plus blatant exploitation of the rule that CE conformance is mostly enforced after the fact and against the hapless importer.
No bang 😭
Next to the video player is an advertisement for a handheld UVC light. It could have been worse. It could have been for a nasal or colorectal UVC light, as it's described as being "Safe to use anywhere". lightforvpuntocom
Bloody bastards, you should report that commercial.
The second one is a UV blacklight color wise I doubt it’s germicidal
The first one just looked really bluish
Preload Ad? "Not all UV lights are created equal" for GermMoldBuster.com
Hi Clive heard that the UV frequency of 222 nm is safe to sterilise covid19 but won't penetrate dead skin. Also talk that it could be fitted to street lights.😱 Any comments. I think I saw it on Physics.org site.
Ricky Turnbull - Patreon?
Dead skin? You mean after it kills it then 😉
Why wouldn't sunlight do the same thing?
The 222nm excimer lamps are still under development and testing. I hope they don't fit them to street lights. Over sterilisation would do more harm than good.
@@montestu5502 furloughed atm so short of cash 🙁 will probably do it when back to work🙂
it is germicidal, depends hot hot it gets :D
Please take apart those cell phone germicidal boxes. I doubt they are UV either.
It's a blue lamp?
Evening All. 😁
I bought one on Amazon. I have no idea if it is the real thing or not. I can't understand a word of these videos, so I am going to have to put it away before it fries the cat.
Are you reporting every one that you buy as fake and disputing the charges?
No. Because I specifically look for rogue items, and if I reported them all my eBay account would probably be closed down.
Can you actually make a genocidal LED?
That's one of the reasons I hate Screw lamp holders they are so dangerous when wired back to front too.
P.s. Pick yourself up a cheap otoscope for viewing part numbers.
come on #clive, slow us your power
It’s really shady if you ask me. Passing off a lamp as germicidal when it’s not. People are going to get a false sense of security. I made the mistake of buying to 60W corn cob led “germicidal” lamp off eBay and was finally able to return after much trouble.
I don’t know if you remember the live stream where you were talking about Naomi Wu the sesxy cyborg. I don’t know if you know but she has just come out of the closet as a ‘Super Ultra Femme Dee’. Quite the shock but she did it really eloquently in text form on a recent video about visiting a lesbian club in Bangkok.
I saw that and mentioned it in a live stream. I spotted the little clues in the background of her videos.
The one disliked is from the manufacturer 😏
Four damn fockers so far.
If you increase the nano farts it will smell more. Lol just kidding..luv u.
Can you imagine how many people would be giving themselves cancer if these lamps were real? The Chinese scammers are doing us a favor :P
I doubt people fully understand the danger of UVC light and how to use them.
There is definitely that aspect.
I came across this today, thought you may like it (it's a dark and stormy reference)
I'lll put it in a reply to this post so you check moderated replies
i.imgur.com/j78u4EQ.jpg
I wonder if they watch your channel
I have had no luck buying genuine UVC quartz ozone lamps on eBay. The sellers accept the order, but then cancel.
One arrived from Geek/Wish yesterday. It looks like the genuine article (a discharge tube not an LED, clear "glass", traces of metallic mercury in the tube). Rated at 6W but, strangely, drawing 8W. Never seen that on Chinese goods before! Quick-ish delivery too via Deutsche Bundespost (so I guess they have a warehouse in Germany). The odd thing is the listing's disappeared from Geek completely, or I'd post a link. Off to buy green bananas today to see if there's UV-C there.
After some searching about: www.wish.com/product/5ea3ff62f529af0a2a826047
Maximum brightness=shorter life = buy more units.
"I've preemptively unscrewed the thing by trying to unscrew it" rotfl
I hope you give the sellers of fake articles bad feedback and ask for full refund? I really hate this shameless behavior playing with peoples fierce in corona times. I had lately very bad experience with electronic parts like transistors, mosfets and even simple diodes - they all proved to be fake! Some of them blacklisted me after negative feedback, but thats the only way to go. I asked ebay to check if it is a data protection violation if they give the blacklist to other sellers as they do? ebay is not concerned about that so i involved the official site - not easy to find a web access for whistle blowing here but i think it will make the way...