260 Watt Quantum Board LED Kit V2 Thoughts?

Randomblame

Randomblame

Well-Known Member
Moflow said:
View attachment 4234693 View attachment 4234692

UV, 660nm 740nm enhanced white board. all leds.
I'll be testing these shortly over a couple of plants
Click to expand...

Look really interesting. Are these two boards or a big one with a small gap? Would be interesting to know which diodes they've used for these 365, 660 and 740nm supplementation. Samsung has the 660's but are they already available?
I like those additional wavelengths but it would only make sense when you can expect nearly the same efficiency and with Epi 5630's it could be a step backwards compared to LM301b only; at least efficiency wise. You know.., just like with the fancy Fantom/Wavy boards.
I'm lookin forward for your first tests, bro. Pretty sure, when anyone can get the best out of these boards then you!!!
You know your SensiStar for instance in and out and she would be a good candidate to judge the boards' performance against the other boards because you know exactly what she's capable of.
 
Moflow

Moflow

Well-Known Member
@Randomblame, the uv, 660 740 diodes are Top view 5730 led tgc from SHENZHEN TANLIE TECHNOPLOGY LIGHTIG CO.,LTD.
The rest are Samsung lmc501c
It's two boards with a gap in the middle. I needed a linear fixture to slot along side the FOTOPs.
I took down a QB + GG and replaced them with these boards, same watts but 480 more diodes.
I know the supplemental diodes are not osram but I'm hoping it's a swings and roundabouts type thing were the extra 480 diodes make up for any inefficiencies.
1x board, 65 watts, for 576 diodes v a QB, 288 diodes
1 x board, 65 watts, for 576 diodes v a GG, 384 diodes.
You know it makes sense....... lol
It's a win win for the QB too. I've just 're drivered it to run at 30~ watts. Probably 200 lumens a watt now :lol:
 
Major Blazer

Major Blazer

Well-Known Member
I just had a go at the 260 kit in a 3x3. Scrogged it, very happy with results of this light. I do think it can benefit from additional lighting for a more even spread so I’m added 2 strips for my next go around but it is completely optional, lots of great flower with just the qb’s. HLG is fantastic.
 
Randomblame

Randomblame

Well-Known Member
Moflow said:
@Randomblame, the uv, 660 740 diodes are Top view 5730 led tgc from SHENZHEN TANLIE TECHNOPLOGY LIGHTIG CO.,LTD.
The rest are Samsung lmc501c
It's two boards with a gap in the middle. I needed a linear fixture to slot along side the FOTOPs.
I took down a QB + GG and replaced them with these boards, same watts but 480 more diodes.
I know the supplemental diodes are not osram but I'm hoping it's a swings and roundabouts type thing were the extra 480 diodes make up for any inefficiencies.
1x board, 65 watts, for 576 diodes v a QB, 288 diodes
1 x board, 65 watts, for 576 diodes v a GG, 384 diodes.
You know it makes sense....... lol
It's a win win for the QB too. I've just 're drivered it to run at 30~ watts. Probably 200 lumens a watt now :lol:
Click to expand...
What are the dimensions of these boards? I like the idea to cover the whole ceiling with diodes. Maybe 6 or 8 of them would fit in my little 125 x 70cm area. 6 or 8 boards, no heatsinks and 2 HLG-240s and my UVB bulbs in the middle.
 
Last edited:
88g

88g

Member
Randomblame said:
What are the dimensions of these boards? I like the idea to cover the whole ceiling with diodes. Maybe 6 or 8 of them would fit in my little 125 x 70cm area. 6 or 8 boards, no heatsinks and 2 HLG-240s and my UVB bulbs in the middle.
Click to expand...
What do you use for UVB?
 
Randomblame

Randomblame

Well-Known Member
88g said:
What do you use for UVB?
Click to expand...
Currently I'm using two 2ft Agromax PureUV, bro(75/25% UVB/A, 2x 24w). Its a hella strong bulb and its needed to harden the plants off against such strong bulbs. Its the 1st time I use them and I still have to figure out how to use them without hurting the plants.

Former I've used reptile bulbs(Arcadia Reptile Desert 12%) with pretty good success. Less stressful, less distance needed and much easier to work with for UVB beginners. We have a few UVB related threads here and i suggest you to read them for more info on how to use them.

With an Arcadia bulb(12% UVB) and ~1ft distance you'll get around 150μW/cm² below the bulb or a dose of 5,4kJ/m² every hour. So 2-4h per day are already enough according to the test below. But reptile bulbs can run all day long without damaging the plant; Agromax and Flowerpower UVB bulbs are too strong to use them the whole day and they need probably more distance.
 

Attachments

Last edited:
  • Like
Reactions: 88g
Moflow

Moflow

Well-Known Member
Randomblame said:
Upps, that means I would need 12 to cover the ceiling completely..
I still like the idea ... but gets expensive and driving them with ~30-35w is a bit .. lets say.. exaggerated, lol!
What costs such a board?
Click to expand...
$57 US - €49 - £44.
I wonder where the point of ridiculousness starts re running low watts.?
For instance, the QB board at 30 watts measured 800 in the centre, 400 at the edges at 7" - ~ 180mm height with the Apogee.
You could always get away with 6 x boards with the overlap of light and use strips around the edges to even the light out.

Here is the 'back of an envelope' par reading of 1 x Disco Board
300mm - 1ft away, 102 wall watts over a 2ft x 2ft - 600mm x 600mm open space.
20181109_150539.jpg

The 2 x boards at 130 watts, back of heatsink temps were 34°c - 93F.....
Which is cool.... :cool:
Sure who knows what they'll be like growing but they look good enough in theory.
They're similar in cost as 2 x Samsung double row strips/stripes - £44
 
Randomblame

Randomblame

Well-Known Member
Moflow said:
$57 US - €49 - £44.
I wonder where the point of ridiculousness starts re running low watts.?
For instance, the QB board at 30 watts measured 800 in the centre, 400 at the edges at 7" - ~ 180mm height with the Apogee.
You could always get away with 6 x boards with the overlap of light and use strips around the edges to even the light out.

Here is the 'back of an envelope' par reading of 1 x Disco Board
300mm - 1ft away, 102 wall watts over a 2ft x 2ft - 600mm x 600mm open space.
View attachment 4236167

The 2 x boards at 130 watts, back of heatsink temps were 34°c - 93F.....
Which is cool.... :cool:
Sure who knows what they'll be like growing but they look good enough in theory.
They're similar in cost as 2 x Samsung double row strips/stripes - £44
Click to expand...
Yeah, I would probably add just a few U-channels on the backside to tripple the surface area and give them a bit more rigidity. Boards themselves run surprisingly cool and at half power anyway.
At 130ish watts probably +600 avarage with around 1000 in the center and if the cooling performance is the same like with other boarde one could even get away without heatsinks.
I already though about the ZeusXT boards but they cost 99€ each. Pretty sure two of this boards in parallel at the same watts would have at least comparable efficiency but on the other hand you profit from better distribution less distance and so on. Is this the cost for just the board or incl. heatsink?
Bava has recently send me a pdf with their latest "QB" collection and price list. But they only offer LM301b boards with additional deepreds. I've already enough UVA with the bulbs and do not need more. But for those working without such bulbs the additional UVA should have positive effects.

Hehe, "point of ridiculousness" is good, lol! I run my old CXA2540 at 175mA; thats just 6w or so. And ~150mA(5w) is my favorit drive current for cheap 50w full spectrum COBs and passive cooling. I use the 1590°k spectrum to mix it with 5000°k/CRI90 Nichia COBs for the plant corner in my living room.
 

Attachments

You must log in or register to reply here.
Top