ttystikk
Well-Known Member
Yes he is. UV-C is much worse than UV-A. UV-A is what gives people a suntan, and they all burn with over exposure.
UV-B is the most desirable fraction for increased resin and terpene production and therefore potency, IMHO.
DIY with Quantum Boards
- Thread starter robincnn
- Start date
UV-B is the most desirable fraction for increased resin and terpene production and therefore potency, IMHO.
JustMeds
Well-Known Member
What would be the most efficient (lamp draw at wall) way to power 4 of these? Even if it means more up front by buying a driver for each one. I think a dimmer is a must to adapt to what plants want, is that good thinking? Thinking for 4x4 to start then maybe bigger. Looking for maybe what you could call modular so more could be added at later time if wanted.
Just been reading and trying to learn so much about this I think I am over thinking it.
Just been reading and trying to learn so much about this I think I am over thinking it.
Stephenj37826
Well-Known Member
4 boards on the newish MW HLG-480-C2100 is a great combo. The HLG 480 is 95+% efficient.
mr. Amsterdam
Well-Known Member
And how about 4 qb288 with an HLG-600H-54 (96% efficient)?
BobCajun
Well-Known Member
Nope. No UVC ever reaches the earth's surface so nobody gets skin cancer from it. UV-A however does. From what I've read, the problem with UV blocking lotions is that most don't block UV-A. Now if UV-A wasn't harmful then why would that even be considered a problem and people write articles about it? Same with tanning lights, a lot more UV-A than UV-B.
But I'm not saying the UV-A from the grow lights is intense enough at normal distances to cause harm, but at the very least it does no good and is therefore a waste of power. Like I said, it's a sales gimmick and nothing more. They know that most people have heard that "UV" increases potency, which actually has not been firmly established, so they get the cheapo 375 nm polymer curing LEDs and stick em in there and try to make it look that it's a benefit. UV-B LEDs are so costly that even one of them in a light would probably double the price. I mean hundreds of dollars for 1 LED. And the UV drops off so fast that the lights would have to be within a few inches of the plants. How ya gonna do that without burning the fuck out them?
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Ryu Hayabusa
Member
Whats better the qb288 or 304?
bored7one4
Member
WOW woke up this morning and its sold out already. FML!!!
qb304
qb304
JustMeds
Well-Known Member
Thanks
I woke up and thought the same thing haha, haven't missed the boat yet;
From the emailz "Quantum Boards, Heatsinks and Kits will be available Tuesday 04/04 9:00PM EST."
the 288 is 54 volt, more driver options, and maybe slightly more efficient due to better voltage bins.
sixstring2112
Well-Known Member
so whats the best way to wire a setup like this to get full power from the driver,series x 2 and parallel ? and does it work better with the qb304 or better with the qb288 or no difference ?
JustMeds
Well-Known Member
Thanks Six,
I also would like to know the answers to your questions.
Here is another good one:
Is there a RIU discount or priority for distribution at 9 tonight?
Stephenj37826
Well-Known Member
Yeah that's a good one too. We actually have quite a few of the hlg-600h-54 if you need one.
Would this be available as a 4 135 watt board kit?
sixstring2112
Well-Known Member
And do you have those hlg 480's for sale
JustMeds
Well-Known Member
I hope soAnd do you have those hlg 480's for sale
brewbeer
Well-Known Member
I'm currently planning to run the 304 boards in a flower space that will be either 2 ft x 4 ft (8 sq ft) or 2 ft x 5.3 ft (10.7 sq ft). I'd like to run the boards as soft as possible to maximize light and minimize heat. I have six (6) 3000K boards with slate 1 heat sinks that I could run with 3 meanwell HLG-80H-C700A drivers at ~45 watts per board, which is about 33 watts per sq ft in the smaller space, or 25 watts per sq ft in the larger space. Does this sound reasonable? Any thoughts or suggestions to run these differently?
If I get lucky tonight I'll pick up a couple 4000k boards for a 2 layer 2 x 2 veg space, and could also try to get two more for the flower space if that makes sense especially if different drivers are recommended. All feed back is welcomed.
If I get lucky tonight I'll pick up a couple 4000k boards for a 2 layer 2 x 2 veg space, and could also try to get two more for the flower space if that makes sense especially if different drivers are recommended. All feed back is welcomed.
Ryu Hayabusa
Member
I am still up in the air about which boards/drivers to get. I want to cover a 5x5 with dimming capability. I also want to be able to run the boards high, or low. I was thinking about going with 6 or 4 boards, at either two board build strips of 3, or just one large with 4 boards together, like the HLG 550. Any input would be appreciated. With board input, and driver.
captainmorgan
Well-Known Member
I'm building 3 bar lights with 3 288 boards each driven with 3 HLG-185-C1050B in series. Should draw around 550 watts and cover a 5x5 vert scrog, waiting on some heat sinks to finish them up.
ttystikk
Well-Known Member
So 9 boards with a total of 550W?