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The best grow light 2018 – HID CFL & LED compared


hi and welcome back to Migro YouTube
channel my name is Shane and then the Founder of Migro In this video we’re going to look at charting all of the grow lights that we’ve tested here at Migro over the
last number of years and show them in comparison to each other so starting at
the worst going all the way up to the best the measure we’re using to compare
the lights is PPFD per Watt that is the amount of PAR light that
comes from the grow light system and reaches the target grow area divided by
the the amount of power that the unit consumes so it’s where we it’s a unit
that we can compare or a measure that we can compare lots of different sizes and
types of grow lights in a comparable way and a little bit like you might measure
miles per gallon or kilometers per liter with cars cars of different sizes you
can still compare them for efficiency and this is what what we’re going to
show you here is the relative efficiency of different grow light systems not
looking at spectral today not looking at price you can go and have a look at that
yourself just looking at the efficiency of the grow light systems and comparing
one to the other we’ve got our you spared no expense today we’ve got our
high-tech grow light top charts efficiency board and we’ve got a range
of grow lights here just some examples here we’re gonna roll through as we’re
going through the list and I’ll show you some of the good points and bad points
of the different light systems as we go along so let’s start at the start first
one we got we’re starting off with CFLs now CFLs are my personally my least
favorite light I really just like them they’re the very low efficiency for
starters you’ll see but also these guys in picture they were designed to replace
old HID bulbs and to go in and Iran fixture but as you can see if you look
in here most the light shines in on itself so it doesn’t go anywhere
and you have to use these with a reflector as well they’re heavy and
bulky they break quite easily a half of this one has gone already
I only use it a few times anyway not very good about light its electrics 250
watt CFL only pulls certainly pulls less than 250 watts but that light only gives
0.6 ppfd per watt which is very very poor that goes right down there next
sixth year we have you have a t5 fixture so it’s fluorescents it again just
straight for us and shoes these are two foot 60 centimeter long tubes forward
them in here and this guy is pretty much like a commercial fitting that you do
you’d see in an office in a ceiling suspended of 10 these are slightly
better because they’re not reflecting back onto themselves they’ve got a high
quality reflector in there behind each tube and that’s reflecting the light
down so these guys are still poor but better than the CFLs which are just
total rubbish so the this t5 – fitting it’s a proper ground light fitting there
by an embargo are called in fire grown by Lumi but it is still not very good at
their efficiency so the Lummi t5 is 0.74 and that’s kind of the best quality
fitting I’ve seen around so I don’t think you’re gonna get much better than
that and Foresta fitting so really they’ve just been superseded by a long
way and you just should not be thinking about them for any grow light solution
because of their their poor efficiency spectrum isn’t much better lifestyle
lifespan and all that kind of thing is pretty poor – an extra long we’re gonna
look at some pretty low efficiency LEDs so we measured we
tested the lush Dominator 2x it is the lowest rated light we’ve tested bar CFLs
so I don’t buy them next one a well used and very common grow light it’s the
metal halide this is a 600 watt version digital ballast medium-sized reflector
reflective walls all that kind of stuff and metal halide you get 0.93 you got
lots of blue in the spectrum which is why people like it good for vegetative
growth but low efficiency and also low lifespan so understand their what have
you got next oh very very popular like next and just tipping off the bottom of
our tested lights my first factor of v300 again we tested it in a with
reflective walls and all that kind of stuff and 0.98 so we’ve got a video on
that this best small grow light video covers that one next one we’ve got is
the base level Mars esta Mars 300 not the reflector a carb type just the basic
Mars 300 and 1.02 and that’s in the small grow life video
next one there then we have first hid light so we’ve had LEDs before you find
a cheat HID lights leds supposedly are supposed to replace them so the smaller
HPS are lower efficiency so you’re gonna see this 150 watt with a small reflector
reflective walls all that stuff digital ballast 1.1
so better than quite a few LED lights next one oh yeah a very popular brand
and of this sort of big popular brands you know they’re expected to be
high-efficiency I think this is probably the most outstanding bad case so the
flagship kind k5 XL 750 1.17 less than a basic HBS setup so pretty poor grow
mates as well just did a little video on those just showing you the insides and
the component quality and all that stuff so while we’re checking out if you’re
thinking of them here we have the benchmark standard I think so this is
high pressure sodium 600 watt digital ballast medium sized adjust a wing and a
4×4 reflective walls 1.2 so 1.2 really is the benchmark for for growing tech if
your system isn’t beating this you definitely shouldn’t be buying it
because this is this is good value for money
it’s very mature technology so lots of people using them you can get them very
cheap and reliable so you know anything below this marker particularly LEDs why
would you buy it why why why would you buy it okay so I think some surprises
here as well so we’ve got the last muddled spectrum King that I tested
spectrum King 400 plus actually not sure if they’ve replaced this yet but this is
certainly current earlier this year and the spectrum paying 400 plus one point
to one again 4×4 reflective oils that stuff though we have a full video
on that one if you want to see a bit more detail but basically as efficient
as the HPS it’s supposed to be replacing next one there’s a bit of a
disappointment because we tested to their flagship are their most efficient
model first the optic one and then we tested the optic too and it’s it’s not
great to be honest it’s one point two three so again it’s down in sort of why
would you bother territory eating it is the the little like here grow light
which I’m very fond of it’s only 17 watts it’s quite expensive but as a cute
little seedling light and one that you could get away with using in your home I
the you know the Cantor or whatever because it’s quite pretty nice result
1.25 next one of my favorites if anybody asked me I want to start her light
I want a cheap grow light and don’t spend too much money upfront I always
recommend these so this is a ceramic metal halide
CMH or light emitting ceramic basically it’s a variant of metal halide bulb
operates at higher pressure and gives you a far better spectrum you can get a
different color temperatures so you can get it cool or warm I would recommend
you know the three and a half thousand K or 4000 K CNH this is with digital past
and medium sized just doing reflector you get a 1.29 for in terms of bang for
book this is very very good and I would highly recommend this if you’re if
you’re looking for just raw power you’re not too concerned about electricity and
long life bolts too so an excellent choice and as you can see
you know wipes the floor with the love of LED options which are supposed to be
replacing it next one some people thought we were doing them down when we
reviewed their light recently sorry if you thought that way I didn’t think it
at all I think there are nicely built in the unit and this is the Mars the same
servo drivers and LEDs but they use little reflector panels to get to focus
the light down onto the grow area works well you get a one point three of the
Mars or factor 48 again if you want to read a cheap starter that is what I
would recommend is one to go over I might have been recommending their cob
light but there wasn’t semi one I’ve nothing against Mars I’ve nothing
against any other grow like company except if they like the Mars
you know they post their power maps and are very good but at least they post
something now we’ve got to get into the peak of the high pressure sodium are HID
so this is a HBS 600 watt same bulb same reflector so it’s a Sun
masterful digital ballast luma tech so high quality equipment but with the
large reflector so using a you know Dominator trip triple XL buy some
systems are some something like that it’s the large reflector for the bulb is
right up into the reflector you know it’s got to be sort of three foot wide
by three foot deep in order to be effective you’ll squeeze a little bit
more efficiency out there so one point three by spending maybe an extra hundred
dollars hundred euros on your reflection it’s a good option you can get from one
point to up to 1.3 which is an extra what 7% next small little life spectrum
cane mother’s little helper hundred-watt again I think they’ve upgraded these
since 240 but not too bad they’re 1.34 ppfd for what’s not bad another one of my personal favorites I
just think they’re beautifully made and they give a great light spread and they
are the peak really we’re approaching the peak I should say of the hid
technology in terms of efficiency so it’s a Givi de thousand watt
double-ended 400 volt Pro Plus or something it’s called so it’s the best
of the best from the kavita range and the only downside is – it’s got a narrow
lens and projects a narrow the night light down narrowly and that means you
got to raise it quite high so it’s got to be about 60 70 meters 60 or 70
centimeters over the grow area which is relatively high compared to some other
reflectors but you get a really really even spread of light and you get good
efficiency 1.39 so they’re expensive but you you’ll get
your payback and and it’s obvious why commercial growers are still using those and so there’s a few surprises here so
in terms of LEDs then the blurple ones we’re getting to the higher end and as a
few of them bunched here one that is available here in Europe anyway and
certainly in some of the local grow shops here in Ireland is the G tools G
LEDs various different model sizes available this was the 280 they look
they’re all going to perform the same to same
relative efficiency 1.5 pbft per wash not bad what do we got next is another
blurple life but a relatively high quality one so couldn’t fit it all on
there but it’s California light works solar system 550 and you know they just
do modular they go up in size the efficiency is likely to be very much the
same this was a 1.5 ppfd per one as well you’ve got a foot master to g.od six
Otis is their high range blur polite again it’s 1.5 around 1.5 at 1.5 – so
you can see up here that we have gathering there of a few blurple lights
they’re the last ones SMG the panel type they are the peak so they are just a
touch over HPS or hid certainly wouldn’t be you know they wouldn’t be replacing
significantly less in wattage in terms of hid it would be more or less the same
just a little bit better so next we’ve got a few lights we’re starting to go up
into the higher end lights so we’ve got a next like mega here haven’t released a
video on this one and but these also are published by monster gardens as well
publish their em their ppfd charts and show you the results for them so there
are 1.6 they are a white panel light then we get into some sort of higher-end
European models at the Magnus or a 350 we test at this we’ve got a video on it
it’s sort of an odd combination of blurple cob
so blue and red carbs in a box which is fan cooled and they come in in sort of
relatively large modules with white lenses so it’s a like I don’t understand
but anyway they’re so – or a 350 medium sized model 1.74 starting to reach the
where its justifying placing HBS now next one very nice to the light again
European one sunlight asked for W we did a 4×4 tent with three up days in them
there are 140 watt each if I remember and because their bar is if you hanging
them across to go here you get a very even spreads with a nice 1.8 one is the
ppfd per watt I must say that this is significantly lower than what they
publish as their PPF which is the output from that from the light the somebody
else can explain the difference but that’s what I tested so one point eight
one you can watch the full video of that on our channel ok we’re getting it to
drumroll territory now so only a few to go next one is again a personal favorite
of mine I just think they’re they’re they’re offering great value for money
really for is what I’d say mostly about them and being innovative and just
looking at things a bit differently so we have the valley here
it’s the quantum board so lots of single mounted devices straight out to a board
being run relatively low wattage so there’s no need for heat sinking on the
back very nice for a little small micro Grove or a small vegetable you got your meanwhile driver with a
little connector on it so pretty basic but it does what it’s supposed to do
daddy these are not protected so you know they can get dirty and go under
stuff and stuff like that but you know it’s a great little system and they
perform very well so we did that was in a two-by-two we put the QB 120 into a
two-by-two tent with reflective walls omitted optimum height and as the 4k
version and we got a 1.9 to efficiency so really really good next after that we
have ourselves we have my go so yeah it doesn’t matter which model they picked a
hundred or the 400 or 600 or the 200 throw all the same their lens so they’re
designed to get the light straight down on with that using reflective walls you
get a little bump from using reflective walls so that they are tested with
reflective walls for a fair comparison and all of our systems are too so simple
number you got a 107 watt my grow you get by 2 you get 215 ppfd so easy to
figure right there we are anybody who watches our videos will not
be surprised by the next one because we tested it here a while ago knocked out to my growth so this is the
other optic this is their small variant the optic one this is a 56 watt light I
think and 54 what and glass lands passive heat sink meanwhile driver
mounted on the back again very simple very straightforward this comes out at a
2.0 4 so just to touch over to and tops be my go
I will say that we haven’t tested the excel yet put in any of the lights we
had tested they’ve looked at the ppfd maps that optic produce on their website
and we’ve been very very close to them in our tests compared to their results
so if you want to work at 8 what the Excel produces or any of their other
lights just look at that ppfd you months because they publish everything which is
brilliant hats off I have again a lot of time
because they’re open and transparent and you know the build quality is good and
they sell what they say they sell so you can’t ask for more than that really so
big drumroll for the top one it’s one unfortunately I haven’t I did I test it
and I got to use but I didn’t get to video so I don’t have a separate video
on this although I’m going to arrange that pretty soon and I just smudged the
no you’re a bit so just one second gonna make them look bad I have a lot of time
for this company I’ve been following them I think they make incredible
products I have to say build quality on this unit is fantastic I didn’t know
what it’d be like until I had it in my hands and has a really nice look and
feel to it they’ve got heritage Vannelli D commonly gonna have heritage but
they’re around as long as anybody else has been and yeah the spread of their
light is absolutely outstanding and their efficiency is top there’s the best
efficiency I’ve tested and in terms of pbft per watt
so it’s the fluence spider ex a lots of people have asked me to test it so I got
a hold of one and tested it just unfortunately the person who had it
wouldn’t let me film it so I couldn’t film it
to show you the ins an heir to the unit but the result is absolutely outstanding
so fluence is a write up guitar and yeah well well the deserve it of where they
are from our own perspective what what would what I would suggest you is mmm
when you’re looking at your light system and what we’ve done instead of spider is
to make it modular so smaller units make up to bigger units which mean you can
add on and break away and be flexible in terms of the sizes of tent sizes you’re
using so it’s a 4 by 2 or a 6 by 2 or whatever we can accommodate those
sizings whether the the spider X model and is is restricted it’s quite rigid
it’s a really four by four and that’s pretty much it so we hope that we offer
fit more flexibility and then when it comes to price if you look at the pretty
much if you look at the three lights there to talk the fluence the optic
tamiya grow we would be best value for money in terms of ppfd per euro or per
dollar compared to the others so we hope we are able to give you a conundrum if
you’re looking for high as high efficiency lights that there’s lots of
good options out there and we’re hope we’re sticking our head out to to appeal
to you as best as we can so hope you enjoyed I know this is gonna be enough
to come into questions so I look forward to them please anything you have please
let us know I’m gonna put as much information into the description below
as possible and there’ll be a blog going out with a video which will have all
this stuff written down so you can pour over it and I’m gonna try and put
spectrum information and all that other stuff
test conditions and everything else in there for each the lights tested and you
can peruse and have a look if your if you’re thinking of buying any of
these lights last thing I would say is you know a little reason I’m building
LEDs and and and that is to be more efficient than the previous generation
of equipment I hate you hid in stuff so I would suggest you looking at that list
that if you can get H ps4 CM H around 1.3 ppfd per watt not a huge expense
that there is no point in getting an attending else underneath here it’s time
to move on really from you know this stuff
they just shouldn’t be selling anymore people shouldn’t be buying them and you
know it’s a low efficiency stuff it’s not helping the environment it’s it’s
not helping anything so yeah hopefully if this video does
anything it gives you a steer away from the bottom there and take some of these
crappy lights off the market and you know does a small amount to help
preserve the planet and also hopefully you will have seen some lights that you
are interested in but you weren’t quite sure and now that you have a bit more
information on the efficiency of these light lighting systems that you can make
a value judgment look at how much they cost versus how much negative eight and
be able to compare once one against the other which is the point of this so hope
you enjoyed as I said looking forward to coming so take care
Cheers

100 Comments

  1. David Brandenburg Author

    this video is great if money is no object because some of those lights will eat you up on your light bill, and could get you busted if your state does not allow growing cannabis!.

    Reply
  2. David Brandenburg Author

    for what the electricity cost is on those MH and HPS lights, you could replace a 1,000w hps with 3- 1,000w LED light panels and still save money and have 3 times the ppfd!.

    Reply
  3. jeff wolf Author

    You're always doing test for the 315 watt ceramic metal halide and once in awhile you'll do the double ended 630 watt ceramic metal halide. My question is why do you guys skip over the 400w ceramic metal halide at HTG Supply sells for a mere $180 that includes the ballast the bulb the hood and the plugins. By far the cheapest way to get into growing lights I think and also it's a start to finish bulb first time I put my lights underneath that 400 water never went back I have two 315 watt ceramic metal halides and I have four of the 400w ceramic metal halides the one thing I don't like about their ceramic metal halide 400w is it comes with an analog ballast. I found sunpix adjustable that I've used on one of my 400 watt bulbs for 4 months now and it works like a champ without blowing up or anything like I was originally concerned about but then hearing about the low Square wave technology kind of went out on a limb and got it and it works great need to order about three more of them now and then maybe just sell off my 400 analog ballast I have now. keep two of them for backup just in case. I would also love to see the 845 watt ceramic metal halide up in action most of all I want to see the eye hortilux 600 watt high pressure sodium ceramic. And see what the difference is between a high pressure sodium and a high pressure sodium ceramic is. it does have a possibility of doing great if it's anything close to what ceramic metal lion hiding is and if it can last longer and have more like a high pressure sodium they'll be the perfect funding Ball but there could be all kinds of pitfalls in it I would love to see a lot of testing of it and customer review what it can handle and do. And those guys have been around forever but you need a thousand-watt analog ballast to run them that's why they don't sell too well. watch if not more of that to get it to grow or something tells me it grows anything close to like a 400w ceramic metal halide you will not be disappointed at all from that bulb

    Reply
  4. JB's GMail Author

    I'm curious how you failed to test or even recognize the ProGrowTech EV700? It flat out smashes the Spydr. If you think the Spydr is great, the bar has been set significantly higher with ProGrowTech. Thanks for taking the time and doing the video. You just missed a big one.

    Reply
  5. Jimmy Mels Author

    Just starting out in Michigan where its pretty much legal. I get to grow 12 plants. Next problem…. Price and growing 12 plants? Lots of money that i don't have? Please advise me…..

    Reply
  6. random events Author

    theres a reason most commercial growers use metal halide for vegetative growth and hps for flower. some set up some rooms to test LED but the best bud in the world is always grown with HID. the money i spent on electricity is roughly the amount of money i would spent on a ficture and LED lights break down more than HID and HID are easier to fix or replace. you can get a combo 600w ballast,reflector,timer and pulleys for $189 and you can easily grow 1lbs and $240 for a 4 month grow if your going from seed. can you show me a LED that can produce the weight and quality for the price?

    Reply
  7. anyshitt Author

    Why are grow light reviewer's starting to sound like politicians and used car salesman.. all the tech mumbo jumbo, just show a set of plants started at the same time under the same conditions from the beginning to the end. give the price's of the lights and that's it.

    Reply
  8. Benji Renals Author

    Looking at the Mars 300 (~130 true watt) vs the Mars reflector 48 (~100 true watt). I know they are slightly different internally but does that mean that adding reflective film/panels to the mars 300 would improve efficiency?

    Reply
  9. Bob Chu Author

    Any opinion on the smaller/lower wattage Taotronic bulbs?: https://www.amazon.com/TaoTronics-Spectrum-Hydroponics-Organic-Wavelengths/dp/B0748D2SMB Their price to output may be higher than other offerings, but for smaller home gardens, would they be the "real deal"?

    Reply
  10. Alex Lagerquist Author

    I have watched so many of these videos. I'm almost burnt out I'm trying to figure out which light to buy. I will spend up to 1,800 to 2 Grand for a light. can one of you nice people that maybe understand this better than me send a link to the light I should buy. grow tent I want is a 4 foot by 8 foot tent. several links would be nice but I need some actual help on this and that would be great thank you

    Reply
  11. Joe Garnier Author

    It would be interesting if you compare these lights to a really basic do-it-yourself project. A friend of mine has a light consisting of 32 fiet 90+ cri LED bulbs. 17.5 watts a piece rated at 1600 lumens. He has a mix of 5000k and 3000k. 4×4 grow space.

    He gets pretty good results, but I suspect the drivers are less efficient than something with an independent power supply. Either way, for less than $300, soild value for money in my view.

    Reply
  12. Cannabis GrowZone Author

    Hey. I bought some LEDhydroponics skylines. 200/600. And wow. They are amazing. I can’t stress. Yeh I paid a hit for them. But they are twice as good as my other lights ( Mars ) with similar stats. Have you had chance to get and test them with a video for YouTube. I’d love it. I think you guys would give a decent test on the 600. It’s formidable

    Reply
  13. Manuela Bongreiniger Author

    Not having fans is i think a big helper for top LED lights. Coming from PC building i remember a typical 12V fan is roughly at 10 Watts power draw per piece. If your light has a couple of them it spends a not small % of power with getting 0 par for it. Maybe you could test on a few lights, disconnect the fans, take power and par measurements before it burns itself to death. Or just unplug the Fans run and Measure power assuming light output will be the same.

    I wonder how much closer some Lights would get to that magical 2.0 number. At least it is more fair against HPS etc. Those also will need some cooling/Ventilation that the LED is having on board and i think is not weighted in. Top LEDs sort of "Cheat" because not only are they more efficient, they require no fan because they stay cooler and that helps in keeping the power consumption as low as possible.

    Reply
  14. Vanessa Author

    hi Shane ,what about gavita led … i would like for you to compare the fluence spydrx light with the gavita 1650e led ,thx,good video great topic!! have a nice one .

    Reply
  15. 71160000 Author

    Good info but for many of us efficiency isn't the main consideration. I have two viparspectra 600 watt led's in a small grow tent. The light output is more than enough for excellent growing and the heat output is almost non existent. The cost is around $200 each. Unlike the high pressure lamps almost silent. What I'm trying to point out is that many of us compare cost, wavelengths and intensity, heat output, longevity, size, noise, coverage area and penetration, and then buy what fits our needs. As a long time marine aquarist I've long given up on high pressure lamps even though they give an intense usable light the drawbacks are too many for me. Heat, noise, and most importantly having to replace expensive lamps every six months as the wavelengths change with use. Same goes for high output florescent s, too much heat and constantly having to replace lamps and occasionally ballasts making the cost higher to operate long term. For me it's buy more led's than I need and allow them to operate hopefully for years at only the cost of operation.

    Reply
  16. sneha priya Author

    Global Revenue of Grow Lights market is valued at 2.93 Billion in 2018 and estimated to reach a value of 4.01 Billion in 2024 at CAGR of 15.89%.

    Request a sample @ https://www.envisioninteligence.com/industry-report/grow-lights-market/?utm_source=yt-chitti

    Reply
  17. shayelad shayelad Author

    https://www.xn--4dbcyzi5a.com/en/2019/03/Research-has-examined-whether-bulbs-are-designated-for-growing-crops/

    Read this pass it on to more growers all should read this 🙏ש

    Reply
  18. John Drew Broadley Author

    What do you grow with your lights ?? Just curious ?? I bought my self a cheap set up with the intent to grow little weed for my self but not doing that till I’m back in Canada so for not I’m growing sunflowers , maple trees and coleus plants

    Reply
  19. Lithuanian GLOCK31_NH420 Author

    Lets see how my beloved Horticulture Lighting Group does..

    I use 8 quantum boards in 3 fixtures. 1×4 and 2×2..

    At 600 watts and 280 watts X2. For a total of 1260 watts of Samsung quantum boards..

    So lets hear how bad they are…..

    Reply
  20. mitch wyld Author

    can you please review crecer grow light? I think I may have calculated it wrong or these lights are just on a whole other level, has an efficiency output of 2.5

    Reply
  21. Julio Blanco Author

    So much snake oil in the grow lamp biz, biggest problem is the commercial growers who know exactly what the best units are won’t share the information for competitive purposes.

    Reply
  22. john smith Author

    I'm not sure that this video takes into account the fact that you can get LED and fluorescent lighting right up close to the plants. If these tests were all done at a height of 2 foot (for example), the results are not true to what they would be if u were using the lights.

    In addition, if you're completely ignoring spectrum then you will get stupid results which suggest an Ikea seedling bulb is a better bulb to grow with than 600w led

    Reply
  23. Joel Dawson Author

    I dislike this video I think this is a bad representation of the light spectrum and par..even the kind k5 has a higher par than a gavita

    Reply
  24. Jeff B Author

    Great video! I’ve been running HLG for a bit now but just got the Optic 1. Just an incredible light. The output at just 54 watts is just bonkers! Can’t wait to see what these companies come out with in the future!

    Reply
  25. Blop Jones Author

    now the hlg r spec would be awesome, I bet it is the top dog. Love you're honesty man, hope you sell a ton of light's..🍻

    Reply
  26. Shep dgc.og.soldier Author

    Very surprised and confused as to why no ChilLed. Some real surprises here for sure. Thanks for the info,as long ago as it was. Lol.✌️

    Reply
  27. Wild Otter Author

    I don't think anyone here can explain the difference in efficiency between a 1.25 light and 1.50 . Does that mean $.10 more a hour for electricity ? What light is the best for lumens which actually grow the plant and what spectrum is best. The Optic1 is high on the charts but it's never going to beat my Optic 2 which is in the middle!

    Reply
  28. OGmolton1 Author

    thanks for your honest analysis and trying to find a common way to measure these lights for efficiency. I find that lights with many leds driven at 1 watt or less give the best results, do you have similar findings?

    Reply
  29. TommyGun1977 Author

    Sorry but I go by Lumens and UV. Lumens is what most go by considering it's on every light on the market. The ppff whatever, what even is it anyway? Wouldn't Lumen and UV be enough to explain the lighting? Just wondering.

    Reply
  30. Adriano de Brito Gutierres Author

    Hello. Thank you for such a good video. Brilliant test! Do you know where one could purchase Fluence Spydrx in Europe? I've noticed OSRAM made different models, where some need CO2 intake. What is the major difference? Is it the levels of PPF that are too high and require CO2 for proper plant growth development? Thank you again

    Reply
  31. Au Collector Author

    Hey Shane. Have you ever done a video on Meizhi lights? 1200 preferably. I think alot of people would be interested in the testing. Thanks. Love your channel

    Reply
  32. Paul W Author

    Yours is the best efficiency for cost because you haven't tested the HLG Quantum board 135w
    yet That gave 2.05 even though you hobbled it with a thick piece pf acrylic.

    Reply
  33. Pavle Pavlovic Author

    oh yours would be the best and you concluded that with how meany crops grown ?none you say ..then there is no place for doubts 🙂

    Reply
  34. David Stephens Author

    I really appreciate the video. It comes across as genuinely unbiased though you do not hide you have a dog in the fight. I love raw data when making a decision especially if collected by someone knowledgeable about typical procedures for repeatable testing. Postings by others say they get similar numbers giving me more faith in the data. I know testing all brands is impossible and hopefully you did not purposefully exclude competitors with better performing products. Thank you for this video and I look forward to watching your others. I will likely buy one of your lights because it is modular and to support this channel. I'll likely buy the Fluence as well for my 4*4 test room.

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  35. Larry Stoney Author

    Look at this brand compared to black dog and kind and optic. A lot of videos and this garbage shit is inferior to all those brands even knock off brands like greengo shit on migro

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  36. Lithuanian GLOCK31_NH420 Author

    Ok kids… pay attention. This man is gonna break down about 25 years of grow bulb teck in 10 min. Hes absolutely correct. Do not argue cause your wrong. He is basically judge and jury for grow light tech.

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  37. Gilbert Sanchez Author

    At some point would you do a test review on the Rapid led 75 watt cob by chance? I'm very Interested on how this light will hold up against other cobs and led lighting

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  38. edwardschlosser1 Author

    I use a 50:50 combination 4 of 2700K and 5600K 85 watt CFL's in the nursery, and 2 1000 watt Hortilux (enhanced spectrum) HID's in XXXL Magnum air cooled hoods in the growroom. The nursery covers 8 sq ft, and the growroom area covers about 60 sq ft. The best T-12 4 foot flourescent tubes on the market are the GW Wide Spectrum Plant Aquarium bulb, and the Phillips Agrolite. These lights, and NOT the CFL's can actual do a reasonable job of flowering plants, but are outperfomed by the CFL's in a nursery setting, and are inferior to HPS in many ways for anything but a closet grow. LED's are still NOT ready for commercial Cannabis hortuculture, but they are improving. I'd give it another 10 years. I've been at this since 1986. I produce an average of 24 oz/Kw and a THC content ranging from 27-32%. HPS will be the gold standard for at least a few more years.

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  39. Alam 1 Author

    It's a shame none of the new generation of white leds are on your list i.e. spider farmer. Mars TS range. Also the Mars 150.that you tested. Alan

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