ttystikk
Well-Known Member
For a quantum? Why do you think it needs one?
DIY with Quantum Boards
- Thread starter robincnn
- Start date
ChaosHunter
Well-Known Member
Budz it looks great ! I know with my 2 board build I can't run it at max with the two autos I have flowering. There just isn't enough canopy of plants for the light at max. Right now I'm at 150W total, 75W per board in a 2x2.5.
The next round I'm going full on scrog with a Nirvana Papaya to fill the tent with canopy.
Oh and for the doubters and naysayers in the past. Not only do the boards veg but they flower well too.
Fastslappy
Well-Known Member
Yep,
Simple sloped one much like the old hydrofarm hood
The boards blast alotta light out the sides be nice to reflect that down
I don't want optics as I like the spread just wanna reflect that side blast
I've got my kit qt on top of my refer in the kitchen the side blast lights the whole room as the refer is in a corner
Fastslappy
Well-Known Member
ChaosHunter
Well-Known Member
ChaosHunter
Well-Known Member
Also to anyone who knows COB grows. What the consensus on Watts per sq ft in Veg and in Flower ? I know there are a lot of variables but would like to know a ball park.
ttystikk
Well-Known Member
Interesting. I'm looking forward to seeing your grow with it in place.
indianajones
Well-Known Member
anywhere from 25-35w per sq ft in flower
from 10-20 per sq ft in veg
ttystikk
Well-Known Member
I generally recommend 20W/sq ft for highly efficient LED setups (25% or less of peak output per chip) to 40W/sq ft for LED pushed hard. I'm running my COB LED at 37.5W/sq ft and it's borderline excessive.
indianajones
Well-Known Member
ttystikk
Well-Known Member
I'm running 900W over 24 sq ft at 56% efficiency, with 80° glass lenses. I'm pushing them hard, no doubt about it.
ChaosHunter
Well-Known Member
Thanks for the help gents. I'm not that far off then, for veg I was running 100W and in flower 150W in a 5sq ft tent
goodro wilson
Well-Known Member
@robincnn you have prolly answered this a time or two but I just thought I'd get ur opinion
I wanna do a rack system in my closet it's two by two
I was thinking four boards two on top level and two on bottom and wanna use two drivers
Would these work https://cobkits.com/product/meanwell-hlg-120h-48a/ or what's your recommendation
Sorry for not paying great attention I guess lol the things that makes these boards great is they are easy for diy dummies like me I wouldn't know how to wire them either and I still get series and parallel confused but these things make it so easy
I wanna do a rack system in my closet it's two by two
I was thinking four boards two on top level and two on bottom and wanna use two drivers
Would these work https://cobkits.com/product/meanwell-hlg-120h-48a/ or what's your recommendation
Sorry for not paying great attention I guess lol the things that makes these boards great is they are easy for diy dummies like me I wouldn't know how to wire them either and I still get series and parallel confused but these things make it so easy
i always end up at max 50 watts a sq foot. i build them up to that in my flower tent start them around 200 and ease my way up. i do grow auto's if that makes any difference
edit not that you need that much i have seen great growth with as little as 25 watts sq ft
edit not that you need that much i have seen great growth with as little as 25 watts sq ft
sixstring2112
Well-Known Member
using 13w per sq ft in veg and plants love it.right at 25w per sq ft in flower in you include the 4 hours of uv im using.still over 60% eff gettin work done 
pop22
Well-Known Member
MMJ Dreaming 99
Well-Known Member
There was a recent GrowMau5 video where he realized he was pushing too much light on the
plants.
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goodro wilson
Well-Known Member
My answer is prolly on page one lol I just think these boards are amazing hoping they are still in stock when I get some money