According to the chart, the Migro 3.3k CMH is 1.55um per watt (If using the stated bulb wattage and adding far red to the ppfd.) But it says on the site that it’s 1.9um per watt. What am I missing? If I take the actual wattage draw of the fixture and divide that by using the total PPFD minus the far red, the um p/watt is actually 1.27 not 1.9.
Google Fucking Sucks! It’s not really about honesty. Either I am missing something or they made a mistake. Gotta give’em the benefit of the doubt. Maybe my figuring is wrong or they used the wrong figures. Experimenting is what I like to do so I’m always making sure things are correct and fair.
Hi, good question , thanks. First the far red is not counted in PAR so it is not included in any PAR measurements. I am not sure where you got 1.55 umol/watt from but Inwill show you the calculations worked out: The MIGRO 3.3K agro bulb in the Economy hood delivers 445 PAR for 348 watts consumed, that's 445/348 = 1.27 umol per watt. The number 445 is the amount of light reaching the grow area (PPFD). The bulb output is 1.9 umols/watt but does not include the power consumed by the ballast (electrical transformer). The 1.27 umols/watt measurement of efficiency of the amount of light reaching the grow area includes the Ballast efficiency losses (7%) and the reflectance losses (about 25%). This account from the reduction from 1.9 umols/watt to 1.3 umols/watt. I hope this helps, Shane
Old tech guy needing to grow, so...infant. Its all a lot deeper than I thought it would be. Best I can tell, indoor grow, small area to start, I will need 3 different lights. UVB 280-320nm, main CMH I listed below, there are others, but that had good price point and nice curve, trying to emulate the McCree curve. Then the IR. Have had no luck finding the band of IR to shoot for. If you know, please tell, otherwise I'll keep reading. Been watching your channel as I look for things, been seeing quite a bit of you.. Thanks, River. Montana
How hot does thd CMH 315's get? I have a 3x3x7 tent. Need more power, than my 250watts of citizen 1212s COBs. Cmh is thd best for mh budget, plus i hear great things.. except i never hear solid heat output info? Help shane!
Did you test each brand with their ballast ? I gotta say im dign my cmh , its nice to get back to hid. Im up 145 + watts and costs are down so far. Heating a room to 80-85 degrees isn't cheap, with the reduction in temps my dehumidifer rarely kicks on.
I'm just getting into growing and I've been watching a lot of your videos as I'm on a budget but also want quality/"value for money" as you put it. I will say you've earned both a subscriber and a customer. Very interested to see the results I get from this light in a 3x3 grow.
you know why I'm going to buy this light. ..besides the fact because I can't afford his other led lights. ...because he's honest. ..he doesn't speak bad on other companies like " black digg n kind" n doesn't get all hype n uppity. like that spectrum king weirdo or rebrand like optic ...feel me...I fuk with you shayne cheers from jersey...USA
The EYE HORTILUX CMH 315 grow lamp was designed specifically for horticulture. Most ceramic metal halide lamps were designed for use in the retail space, so the UV light was blocked. Hortilux uses a glass that allows the UV light to pass through benefiting plant growth. Designed for 'base-up only' so not of use to everyone. Please consider this for UV but a cheapUV bulb for horizontal would equal this eye bulb.
Not that great it's just an added uv spectrum to enhance a 4k but it works... this cheap 40 dollar hilux 4k is ridiculous strong in a lec but act like a 3100 in a cheap unit
Dude is legit. Keep watching his stuff, he does not put his finger on the scale. For my purposes his led light is not the best choice, and his channel taught me that. If you watch all his vids and maybe check out some green Gene garden you will become a grow light buying expert. 👍
30 seconds in and I, unfortunately, don't see the Eye Hortilux lamp. Claim to be the best! Maybe another time. For a look at other lamps, from over a year ago, I believe Growers House made the video, but not positive. Check on TH-cam for 315W lamp review. Great PAR maps for each lamp included. Only a few are tested here that appeared in the other, older video lamp comparison, so Kudos to Shane for testing lamps that are more recent! Eye Hortilux 315W CMH lamp sometime? Maybe? Thanks for another informative video. I'm using CMH w/supplemental Citizen COB's(4-100W units, w/2-50W COB's for each unit, on a 1M rail, adjustable, got too good a deal, I had to try them, though I planned on getting the Migro 800, with more efficiency, and much better craftsmanship, as well as upgrades available, and more!). Great combination! If I went all LED's, I believe Migro would be tops, with adjustable fixtures in all ways. Something I only found cheaply made, and less efficient, less trust in everything, all around. Migro has the most efficient COB's available, and most unique design. I could go on about Migro, but I've been rambling enough. Keep on keeping on Shane, and other growers!
Thanks man. Appreciate the comments. I'll gather the other bulbs mentioned in the comments and test them in a later video. If you are interested in custom hanging frame to integrate your lighting upgrade let me know. We can mail back and forth and I'll design a layout and frame for you. Contact details on the website. Take care Shane
@@MIGROLIGHT agreed however I would like to see the difference in the hortilux cmh due to there removal of the inner jacket that almost all CMH lamps have . I'm wondering if the added UV changes the outcome of your test..
I plan to buy a 315 cmh light soon I sold my cheap Chinese grow lights and I am going to try cmh what bulbs do I need I want more information before I buy what do I need to know before buying a mistake I can not afford great leds so that’s why I am going the cmh road to grow
hello shane, thank you as always for all the work that you do. helping all of us save time and money. much appreciated. I want to purchase the Migro 4k far red cant seem to find it? any advice? thanks man
Hello Migro, good vid dude...have you any plans to test a Hortilux eye? and do you plan to test any bulbs in a vertical position?....also dude, I use a Hyperlux 3k atm which are only £40-£45....if all the bulbs you tested pretty much the same, apart from the special 4K, would it pay me to invest in a more expensive bulb?...and can you use an American bulb 110v on a UK 240v system?....Thanks in advance for any answers dude.
Have seen some bulbs in a vertical housing, like the sun systems 315. Was wondering about the coverage in a 3x3 vs the horizontal layout like yours. Thanks for sharing all the information you do
Hi, the vertical configuration required a very 'deep' reflector to redirect the light. It is no advantage to having a shallower reflector to suit the bulb being horizontal.
Another great video Shane...thanks for that. Ever since I considered your COB's but had to settle for a CMH set-up I've been looking for vids like this on TH-cam but not alot of data available, mostly just grows with CMH/LEC. And while the majority speak favourably of them and get great results, I'm glad to learn there's not a helluva lot of difference across the brands of bulbs in terms of PPFD/spectrum...I know where I'll be getting my replacement bulbs from now on. Maybe I missed it but how high off these sensors were you testing these bulbs?
Thanks for the comments, much appreciated. I love CMH too :) It's hard to understand why the tech is not more popular. The Hanging height was the same for all tests at 30cm. That is the lowest hanging height I would recoommend. The centre measurements wll be less than 1,000 PAR which is required. th-cam.com/video/IHGiOccafjE/w-d-xo.html
What’s the chance of getting a live grow, ppfd, and spectrum/cri comparison between the MIGRO cob, MIGRO cmh, and a Hortilux blue for vegetative growth and flower? I’m pretty much sold on a MIGRO cob for flower but I need to see more for veg before giving up my Hortilux blue. If the cob beats the Hortilux blue, I’ll put them in my veg and bloom spaces.
Hi, the Hortilux blue is a regular Metal Halide bulb, the efficiency is 1 ppfd/watt at best (4K CMH is 1.3ppfd/watt) and the spectrum is a 5K colour temp. The CMH cannot match the MH for its 25% blue but 25% blue is too much for full cycle growing. Thanks for the comment I will line up a comparison like this in a new video
MIGRO Thanks I appreciate the response. The Hortilux blue is definitely not a regular mh bulb and I know because I’ve grown with a bunch of different regular mh bulbs trying not to pay for a blue because it advertises lower lumen and it’s like double the price of a standard mh bulb but when I bit the bullet and gave it a try it was the biggest my plants had ever grown in the shortest amount of time and the yield was like 30%-40% higher depending on strain. It also produced tighter node spacing. I don’t mind having different bulbs for veg and flower if it yields higher by a large enough margin to justify the cost and it did that. I look forward to a comparison video with live grow featuring that bulb.
@@MIGROLIGHT www.amazon.com/gp/product/B00HXOJ1FG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 i hope this will help u i pay $59 all the time and so does anyone else here in the USA.
@@eck413 I support no business that wishes to rip people off so they can drive nice cars and eat out all the time, not one grow store has been a small grow shop they are alllll people wwith cash that want more free cash sooo no i wont ever.
Hello, a 315W CDM will emit about 450 umols PPFD. If you want 600 ppfd average the area it can cover is: 445/600 = 0.75M2. This is about a 90cm x 90cm or 3ft x 3ft grow area.
@@MIGROLIGHT what about a 315w with a medium AdjustaWing reflector? 🤔 I wonder if it can push a 315w to cover more than 100x100cm if the reflector is set to the widest light spread
@@MIGROLIGHT I dont wanna ask a stupid question I'm new so here is one. My 5x 5 tent will require 2 315 cmg for a good yeald? I have a 4x2 and a 5x5 eith one 315 cmh with tent would u veg in? Should I pack the light into the 4x2 for flower?
Philip Payne i think the lower they go with the kelvins the more yield they get, at the cost of quality. CMH lamps also come in 4200k which are more geared towards quality
Light efficacy is better in the lower k ranges. Red light is the most efficient spectrum, more par with the same wattage. Typically flowering is done under lower k for increased yield, but recently evidence points to a better quality with a broader higher k spectrum
Hello thanks for taking your time to do these videos. In the future could you do one on the ark 600 or the 900 from advanced LED thanks stay cool peace out
I only had my cmh for 1 season now and didn't get to harvest because of my heat stopped working n killed my crop but....the plants were extremely compact and there was little to no stretch...canopy penetration is good u don't know why people say that it isnt....u thought it was going to preform better to be honest but didn't disappoint cheers
Greetings from the Ukraine ✌ im very interesting in what are you doing, and so grateful for all these info! My story with cmh starts when i have job in some store of sport equipment, and there was cmh lightning) my employer desided to change it to led, because of less power consumption, i understand his way. But those new leds were awful after warm light of cmh. It was not far ago) i was using hps, 250 and 600w rig electronic gavita, when i looked on those dismantled cmh lamps and ballasts - i didn't know what is that, i just know this is hid lamp! Ok, google, lets chek it out! What i found!!!!!!! I bought it, it was about 30 bulbs, used and new ones, i was lucky to found even new 2x Philips cdm t elite 930 70w and 2x osram hci t 150w 830, also there was non elite Philips 70/150w 942 and osram ndl(942)/wdl(830) in g12, 70w 830 in rx7s sockets with closed in-build reflectors, with g12 sockets and ballasts for them just for few $$)) Sooo...i can say 2x150w 830 can beat almoust a twice over 250 hps, on g/w ;) just because veg stage on cmh so perfect as it can be, and result always be better. Also i started to grow some lettuce, radish etc👍 So my question: is it pretty acceptable to use these "shop" lamps as a grow light? Relatively to 315 gro bulb specs. Yes, its less efficient mmol/w, but the spectrum is the near/same? I read datasheet and saw that 830 osram is just the same as elite 930 phillips, just in specs 942 osram looks differently better than Philips's 942) im interesting to know truth) obviously this is quite not generic way to grow on cmh, i can find cmh bulb, but not square wave ballast 315 what I like, only few models of Lumii. Ohnestly im impressed by these small things 70/150w, i used them in cultubes like 2х315, but it 2x150, i have a great footprint by them even on 90x90 cm, 25-35 cm above plants. Also i have few open two-wings reflectors in other box, where i put 3x and 4x 70w and mix it 942/930.. in that case i see excellent covare with good penetration) im in love with cmh and sold all my hps stuff) leds more efficiently but GOOD led too expensive if u want just to try u as a farmer, sooooo, if you have any chance to take yours spectrometer to nearest city mall and do measurements of these lights) it would be cool, and may be you can find some interest in that experiment) Ps sorry for grammar, my English is not native, hope i was pretty understandable ✌
And why all cmh setups with built on ballast? Or they can be put out of the box? My gavita 600 was like that) ballast easily can heat box up to 3°C more) sometimes it matter. So it was not hard to add 1m cable and start to rocknroll ;)
@@kpennett The man does a good job all the same. He tries to be fair with his competitors. He sells a good light from what I am seeing on here, but would have to have one hooked up to see. Would like to see growmaus5's "Logic Puck" side by side. It wouldn't be "degrading" if it takes top spot, no harm done.
Hi Letta please Send your email address with bank details sir and our team at migro would be happy to have your business we recommend buying ten minimum as you would really love them also send extra for shipping get 90% off by using Bitcoin quick limited stock offer ends soon
Hi Migro compliments for ur channel! I have a question if you or anyone can respond me pls, can i use a 600w hps magnetic ballast for this 315w cmh bulbs?
I got so much info to research I haven't had the time to summarise it. I was supposed to do it o er Christmas but drank instead... I'll get it together soon. Take care Shane
Sticky fingers 420 I don't think he did (please add link if I am incorrect, I'd like to watch the video). He tested the Optic 1 (54 watt) but not the Optic 1 XL.(100 watt).
If you're growing a single indica plant in a 2x2 tent the XL is a decent choice. However its unrealistic to grow more than one plant under them because of the brutal light spread. That being said, I have an optic 6 in a 4x4 and get roughly 1/2 pound dry every 3 months. Their lights are solid
Hello Shane and greetings from Denmark. I'm new to your channel but your videos has already taught me alot about grow light. Maybe you could test the Senmatic FL300 (www.senmatic.com/horticulture/products/led-fixtures) sometime. Keep up the excellent work!
According to the chart, the Migro 3.3k CMH is 1.55um per watt (If using the stated bulb wattage and adding far red to the ppfd.) But it says on the site that it’s 1.9um per watt. What am I missing? If I take the actual wattage draw of the fixture and divide that by using the total PPFD minus the far red, the um p/watt is actually 1.27 not 1.9.
Gotta do your part to keep em "honest" Eh?
Google Fucking Sucks! It’s not really about honesty. Either I am missing something or they made a mistake. Gotta give’em the benefit of the doubt. Maybe my figuring is wrong or they used the wrong figures. Experimenting is what I like to do so I’m always making sure things are correct and fair.
Hi, good question , thanks. First the far red is not counted in PAR so it is not included in any PAR measurements. I am not sure where you got 1.55 umol/watt from but Inwill show you the calculations worked out:
The MIGRO 3.3K agro bulb in the Economy hood delivers 445 PAR for 348 watts consumed, that's 445/348 = 1.27 umol per watt. The number 445 is the amount of light reaching the grow area (PPFD). The bulb output is 1.9 umols/watt but does not include the power consumed by the ballast (electrical transformer). The 1.27 umols/watt measurement of efficiency of the amount of light reaching the grow area includes the Ballast efficiency losses (7%) and the reflectance losses (about 25%). This account from the reduction from 1.9 umols/watt to 1.3 umols/watt. I hope this helps, Shane
Shane, this is why you are the man. You operate within the utmost high standard of clarity within business. Cheers
Old tech guy needing to grow, so...infant. Its all a lot deeper than I thought it would be. Best I can tell, indoor grow, small area to start, I will need 3 different lights. UVB 280-320nm, main
CMH I listed below, there are others, but that had good price point and nice curve, trying to emulate the McCree curve. Then the IR. Have had no luck finding the band of IR to shoot for.
If you know, please tell, otherwise I'll keep reading. Been watching your channel as I look for
things, been seeing quite a bit of you.. Thanks, River. Montana
Thank you I needed this and was trying to compare them myself which would've taken forever. Cheers
How hot does thd CMH 315's get? I have a 3x3x7 tent. Need more power, than my 250watts of citizen 1212s COBs. Cmh is thd best for mh budget, plus i hear great things.. except i never hear solid heat output info? Help shane!
Why no hortilux bulb?
I love the Phillips 930 agro, it has a balanced spectrum and the built quality of the bulb is just next level, easily lasts 2 full years
are you using the 930 agro through veg and flower?
Did you test each brand with their ballast ? I gotta say im dign my cmh , its nice to get back to hid. Im up 145 + watts and costs are down so far. Heating a room to 80-85 degrees isn't cheap, with the reduction in temps my dehumidifer rarely kicks on.
No, the same ballast used for each bulb to level the playing field. We used the MIGRO Economy ballast and relfector
I'm just getting into growing and I've been watching a lot of your videos as I'm on a budget but also want quality/"value for money" as you put it. I will say you've earned both a subscriber and a customer. Very interested to see the results I get from this light in a 3x3 grow.
you know why I'm going to buy this light. ..besides the fact because I can't afford his other led lights. ...because he's honest. ..he doesn't speak bad on other companies like " black digg n kind" n doesn't get all hype n uppity. like that spectrum king weirdo or rebrand like optic ...feel me...I fuk with you shayne cheers from jersey...USA
The EYE HORTILUX CMH 315 grow lamp was designed specifically for horticulture. Most ceramic metal halide lamps were designed for use in the retail space, so the UV light was blocked. Hortilux uses a glass that allows the UV light to pass through benefiting plant growth.
Designed for 'base-up only' so not of use to everyone.
Please consider this for UV but a cheapUV bulb for horizontal would equal this eye bulb.
Not that great it's just an added uv spectrum to enhance a 4k but it works... this cheap 40 dollar hilux 4k is ridiculous strong in a lec but act like a 3100 in a cheap unit
I would like to see a cheap VIVO sun cmh in comparison to these great bulbs
Of course MIGRO would come out the best... it's the MIGRO channel
Dude is legit. Keep watching his stuff, he does not put his finger on the scale. For my purposes his led light is not the best choice, and his channel taught me that. If you watch all his vids and maybe check out some green Gene garden you will become a grow light buying expert. 👍
30 seconds in and I, unfortunately, don't see the Eye Hortilux lamp. Claim to be the best! Maybe another time. For a look at other lamps, from over a year ago, I believe Growers House made the video, but not positive. Check on TH-cam for 315W lamp review. Great PAR maps for each lamp included. Only a few are tested here that appeared in the other, older video lamp comparison, so Kudos to Shane for testing lamps that are more recent! Eye Hortilux 315W CMH lamp sometime? Maybe? Thanks for another informative video. I'm using CMH w/supplemental Citizen COB's(4-100W units, w/2-50W COB's for each unit, on a 1M rail, adjustable, got too good a deal, I had to try them, though I planned on getting the Migro 800, with more efficiency, and much better craftsmanship, as well as upgrades available, and more!). Great combination! If I went all LED's, I believe Migro would be tops, with adjustable fixtures in all ways. Something I only found cheaply made, and less efficient, less trust in everything, all around. Migro has the most efficient COB's available, and most unique design. I could go on about Migro, but I've been rambling enough. Keep on keeping on Shane, and other growers!
Thanks man. Appreciate the comments. I'll gather the other bulbs mentioned in the comments and test them in a later video. If you are interested in custom hanging frame to integrate your lighting upgrade let me know. We can mail back and forth and I'll design a layout and frame for you. Contact details on the website. Take care Shane
Test the hortilux cmh 315 please
I just switched to a Hortilux HPS bulb and it blows a standard Sylvania HPS bulb away.
The message to get across here is most bulbs are the same. the Hortilux will be in the same 3% range all the other bulbs tested.
@@MIGROLIGHT agreed however I would like to see the difference in the hortilux cmh due to there removal of the inner jacket that almost all CMH lamps have . I'm wondering if the added UV changes the outcome of your test..
Ok I wasn't aware they had a different bulb structure. I'll have a look out for one and come back to you
The Hortilux CMH (not in your test) is designed to be 'base up only'.
Retest please with the popular bulbs hortilux cultilux growers choice 3k and 4k
I plan to buy a 315 cmh light soon I sold my cheap Chinese grow lights and I am going to try cmh what bulbs do I need I want more information before I buy what do I need to know before buying a mistake
I can not afford great leds so that’s why I am going the cmh road to grow
hello shane, thank you as always for all the work that you do. helping all of us save time and money. much appreciated. I want to purchase the Migro 4k far red cant seem to find it? any advice? thanks man
Hello Migro, good vid dude...have you any plans to test a Hortilux eye? and do you plan to test any bulbs in a vertical position?....also dude, I use a Hyperlux 3k atm which are only £40-£45....if all the bulbs you tested pretty much the same, apart from the special 4K, would it pay me to invest in a more expensive bulb?...and can you use an American bulb 110v on a UK 240v system?....Thanks in advance for any answers dude.
Ok, but at the end, what bulb are better for what and what other bulbs are good for? Because are very interesting all these 😉😊
Have seen some bulbs in a vertical housing, like the sun systems 315. Was wondering about the coverage in a 3x3 vs the horizontal layout like yours. Thanks for sharing all the information you do
Hi, the vertical configuration required a very 'deep' reflector to redirect the light. It is no advantage to having a shallower reflector to suit the bulb being horizontal.
MIGRO thanks for taking the time to answer my question
You do an awesome job sir.
The market probably hasn't changed much but if you need another video idea, an update on this video would be appreciated, cheers Shane :)
a pal of mine said there was a new hps on the market..i was trying to get him to convert to led..
Another great video Shane...thanks for that. Ever since I considered your COB's but had to settle for a CMH set-up I've been looking for vids like this on TH-cam but not alot of data available, mostly just grows with CMH/LEC. And while the majority speak favourably of them and get great results, I'm glad to learn there's not a helluva lot of difference across the brands of bulbs in terms of PPFD/spectrum...I know where I'll be getting my replacement bulbs from now on. Maybe I missed it but how high off these sensors were you testing these bulbs?
Thanks for the comments, much appreciated. I love CMH too :) It's hard to understand why the tech is not more popular. The Hanging height was the same for all tests at 30cm. That is the lowest hanging height I would recoommend. The centre measurements wll be less than 1,000 PAR which is required. th-cam.com/video/IHGiOccafjE/w-d-xo.html
What’s the chance of getting a live grow, ppfd, and spectrum/cri comparison between the MIGRO cob, MIGRO cmh, and a Hortilux blue for vegetative growth and flower? I’m pretty much sold on a MIGRO cob for flower but I need to see more for veg before giving up my Hortilux blue. If the cob beats the Hortilux blue, I’ll put them in my veg and bloom spaces.
Hi, the Hortilux blue is a regular Metal Halide bulb, the efficiency is 1 ppfd/watt at best (4K CMH is 1.3ppfd/watt) and the spectrum is a 5K colour temp. The CMH cannot match the MH for its 25% blue but 25% blue is too much for full cycle growing. Thanks for the comment I will line up a comparison like this in a new video
MIGRO Thanks I appreciate the response. The Hortilux blue is definitely not a regular mh bulb and I know because I’ve grown with a bunch of different regular mh bulbs trying not to pay for a blue because it advertises lower lumen and it’s like double the price of a standard mh bulb but when I bit the bullet and gave it a try it was the biggest my plants had ever grown in the shortest amount of time and the yield was like 30%-40% higher depending on strain. It also produced tighter node spacing. I don’t mind having different bulbs for veg and flower if it yields higher by a large enough margin to justify the cost and it did that. I look forward to a comparison video with live grow featuring that bulb.
Why your 4k have not so much par how the other but more far red??
59$ for a philips bulb on amazon here in the usa
Please post a link because genuine Philips 315W CMD bulbs are more expensive than that wholesale.
Skrew SlAmazon , support your local grow store. #growlocal
@@MIGROLIGHT www.amazon.com/gp/product/B00HXOJ1FG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 i hope this will help u i pay $59 all the time and so does anyone else here in the USA.
@@eck413 I support no business that wishes to rip people off so they can drive nice cars and eat out all the time, not one grow store has been a small grow shop they are alllll people wwith cash that want more free cash sooo no i wont ever.
@@MIGROLIGHT let me kno if the linked worked
this kit, covers for flower 1x1 or 0.8? Thanks.
Hello, a 315W CDM will emit about 450 umols PPFD. If you want 600 ppfd average the area it can cover is: 445/600 = 0.75M2. This is about a 90cm x 90cm or 3ft x 3ft grow area.
@@MIGROLIGHT what about a 315w with a medium AdjustaWing reflector? 🤔 I wonder if it can push a 315w to cover more than 100x100cm if the reflector is set to the widest light spread
@@MIGROLIGHT I dont wanna ask a stupid question I'm new so here is one. My 5x 5 tent will require 2 315 cmg for a good yeald? I have a 4x2 and a 5x5 eith one 315 cmh with tent would u veg in? Should I pack the light into the 4x2 for flower?
Sorry to dilute your tread which would be better 600watts of led aka qb style or two CMH
QB boards deliver at least 1.8 umols/watt efficiency compared to CMH at 1.3. 600W of QB 40% morePAR ouput.
250w hps vs 315w cmh? For growing and fruiting chilli? Thanks
315cmh is prob as good as 2 250 hps..
I agree no brainier 315 cmh
Hi i'm surprised these bulbs are based around 3K, I thought 5000 Kelvin plus is what is needed for daylight simulation? Or have I got this wrong?
Philip Payne i think the lower they go with the kelvins the more yield they get, at the cost of quality. CMH lamps also come in 4200k which are more geared towards quality
Light efficacy is better in the lower k ranges. Red light is the most efficient spectrum, more par with the same wattage. Typically flowering is done under lower k for increased yield, but recently evidence points to a better quality with a broader higher k spectrum
@@rogermoore770 look up migro you tube channel, and professor bugbee of Utah University.
@@Soilfoodwebwarrior this or that ? lol .... I use 4000k to get more bud sites.
Hello thanks for taking your time to do these videos. In the future could you do one on the ark 600 or the 900 from advanced LED thanks stay cool peace out
I only had my cmh for 1 season now and didn't get to harvest because of my heat stopped working n killed my crop but....the plants were extremely compact and there was little to no stretch...canopy penetration is good u don't know why people say that it isnt....u thought it was going to preform better to be honest but didn't disappoint cheers
4k
Hi there, are comments still being monitored on this video?
Wares the growers choice, hortalux, cultilux, bulbs. Should testvthem
How long do your bulbs last? Not worth it if they die sooner than the other brands.
Greetings from the Ukraine ✌ im very interesting in what are you doing, and so grateful for all these info! My story with cmh starts when i have job in some store of sport equipment, and there was cmh lightning) my employer desided to change it to led, because of less power consumption, i understand his way. But those new leds were awful after warm light of cmh. It was not far ago) i was using hps, 250 and 600w rig electronic gavita, when i looked on those dismantled cmh lamps and ballasts - i didn't know what is that, i just know this is hid lamp! Ok, google, lets chek it out! What i found!!!!!!! I bought it, it was about 30 bulbs, used and new ones, i was lucky to found even new 2x Philips cdm t elite 930 70w and 2x osram hci t 150w 830, also there was non elite Philips 70/150w 942 and osram ndl(942)/wdl(830) in g12, 70w 830 in rx7s sockets with closed in-build reflectors, with g12 sockets and ballasts for them just for few $$)) Sooo...i can say 2x150w 830 can beat almoust a twice over 250 hps, on g/w ;) just because veg stage on cmh so perfect as it can be, and result always be better. Also i started to grow some lettuce, radish etc👍 So my question: is it pretty acceptable to use these "shop" lamps as a grow light? Relatively to 315 gro bulb specs. Yes, its less efficient mmol/w, but the spectrum is the near/same? I read datasheet and saw that 830 osram is just the same as elite 930 phillips, just in specs 942 osram looks differently better than Philips's 942) im interesting to know truth) obviously this is quite not generic way to grow on cmh, i can find cmh bulb, but not square wave ballast 315 what I like, only few models of Lumii. Ohnestly im impressed by these small things 70/150w, i used them in cultubes like 2х315, but it 2x150, i have a great footprint by them even on 90x90 cm, 25-35 cm above plants. Also i have few open two-wings reflectors in other box, where i put 3x and 4x 70w and mix it 942/930.. in that case i see excellent covare with good penetration) im in love with cmh and sold all my hps stuff) leds more efficiently but GOOD led too expensive if u want just to try u as a farmer, sooooo, if you have any chance to take yours spectrometer to nearest city mall and do measurements of these lights) it would be cool, and may be you can find some interest in that experiment)
Ps sorry for grammar, my English is not native, hope i was pretty understandable ✌
And why all cmh setups with built on ballast? Or they can be put out of the box? My gavita 600 was like that) ballast easily can heat box up to 3°C more) sometimes it matter. So it was not hard to add 1m cable and start to rocknroll ;)
Prima klima is nice as well
Are you "leveling" your light before you do your measurements.Center 4 grids should be close to the same ppf.
Right? I thought that looked a little "crooked"
@@kpennett The man does a good job all the same.
He tries to be fair with his competitors. He sells a good light from what I am seeing on here, but would have to have one hooked up to see.
Would like to see growmaus5's "Logic Puck" side by side. It wouldn't be "degrading" if it takes top spot, no harm done.
The light was tested in a grow tent at level. If you look at the measurements they are pretty balanced th-cam.com/video/IHGiOccafjE/w-d-xo.html
So how can i order cmh bulbs from you
Hi Letta please Send your email address with bank details sir and our team at migro would be happy to have your business we recommend buying ten minimum as you would really love them also send extra for shipping get 90% off by using Bitcoin quick limited stock offer ends soon
Does anyone know any android apps that can measure spectrum or lux
They dont exist. No phone or tablet has the ability to measure either with the hardware built in
@@robbyg1311 Yeh but if I make a angled periscope with a slice of dvd what could be the best app?
theres one for iPhone, dunno about android. just search “lux meter” you’ll find it.
it’s no $1000 machine, but it’s surprisingly accurate for an app.
Hi Migro compliments for ur channel! I have a question if you or anyone can respond me pls, can i use a 600w hps magnetic ballast for this 315w cmh bulbs?
No. CMH requires a special ballast.
@@MIGROLIGHT and bulb
Can't wait for the U.V. talk =) Thanks again
I got so much info to research I haven't had the time to summarise it. I was supposed to do it o er Christmas but drank instead... I'll get it together soon. Take care Shane
Please test an Optic 1 XL. Thank you
Robert Moraws he did
@@stickyfingers4205 There is both a Optic 1 and a Optic 1 XL
Yea I know the optic xl is double the 1 so figure it’s better
Sticky fingers 420 I don't think he did (please add link if I am incorrect, I'd like to watch the video). He tested the Optic 1 (54 watt) but not the Optic 1 XL.(100 watt).
If you're growing a single indica plant in a 2x2 tent the XL is a decent choice. However its unrealistic to grow more than one plant under them because of the brutal light spread. That being said, I have an optic 6 in a 4x4 and get roughly 1/2 pound dry every 3 months. Their lights are solid
Please review skyline led.They dont have shitty pc fans.
Hello Shane and greetings from Denmark. I'm new to your channel but your videos has already taught me alot about grow light. Maybe you could test the Senmatic FL300 (www.senmatic.com/horticulture/products/led-fixtures) sometime. Keep up the excellent work!
Where is lumatek 4k cmh daylight ?
In the bin where it belongs
Wtf wheres hortilux
1.25x speed it is!
What about the GE 400watt cmh bulb.. is it true cmh or quasi mh ?