Diy FOTOP grow board 280x900x2.0mm (L29.52"xW9.18")

2x Fotop at 200w (one hlg180-48A each), 12 inches apart, give a fairly even spread at 16" in our quick and dirty test, around 800 ppfd.

Also liking 4 x fotop 200w each, framed together in a square, or sorta like a windmill, so you have a 4'x4' fixture with a 2' hole in the middle, for a 5x5 or more but as we are doing aisles we never tried them that way. But should remove any hotspot from the middle, maybe even too much.

Also soon i can test these boards against some confirmed S6 with similar layout and numbers at same power draw to see how they stack up.
 
Last edited:
Rocket Soul said:
Not sure, i dealt with Rita@meijiu. I think it worked out a hefty shipping and handling fee of about 120$+ 80$ per board, we never got kit or driver thru them. I think one of the competitor-alis, maybe r2h2, got a similar board but with extra 660 diodes.
Click to expand...
Ya I'm speaking with Rita fang. She says 150 for 2 288 board setup with a 240-48=
 
That's what I said. Or she said I could get a 4 288 board setup with 2 240-1400's but there's more diodes, more coverage and only one driver on the 800 setup. But I dunno.
 
Moflow said:
Miģht be better to order your driver and heatseaks locally to save a few bob.
@Rocket Soul how are your 800 boards working out for you so far?
Click to expand...
The project got delayed due to my associate faffing around and changing his mind constantly. Right now a few are veggin nicely, beating the crap out of MH.

Opinions on the boards? They are very easy to work with if you wanna cover larger areas.
The evenness of coverage is not perfect, middle gets to about 20% more light than the sides.
I think these boards are bordering on too low diode density (depending on what wattage you wanna run them on): they are fine at 200w/12 inch height but when we ran them at 100w (aprox) the light levels dropped off quite drastic, even at 6 inches we couldt get flower intensity.
I was in touch with rita again a while back and she was hawking these 288qbs with supplementary 660/730nm on separate channels, lumiled diodes of unknown quality.
If id go again id id probably use these ones, 3 on a 1'x3' alu sheet, but they were a bit more expensive (40$?) if i remember right.
 
Rocket Soul said:
The project got delayed due to my associate faffing around and changing his mind constantly. Right now a few are veggin nicely, beating the crap out of MH.

Opinions on the boards? They are very easy to work with if you wanna cover larger areas.
The evenness of coverage is not perfect, middle gets to about 20% more light than the sides.
I think these boards are bordering on too low diode density (depending on what wattage you wanna run them on): they are fine at 200w/12 inch height but when we ran them at 100w (aprox) the light levels dropped off quite drastic, even at 6 inches we couldt get flower intensity.
I was in touch with rita again a while back and she was hawking these 288qbs with supplementary 660/730nm on separate channels, lumiled diodes of unknown quality.
If id go again id id probably use these ones, 3 on a 1'x3' alu sheet, but they were a bit more expensive (40$?) if i remember right.
Click to expand...
Ya she said to me the 4 board 288 was More Economical whatever tf that means. I'd love the boards I see on there that resemble Chilleds new boards with UV and 660
 
Airwalker16 said:
https://m.alibaba.com/product/60777...pm=a2706.7843667.1998817009.18.6ee73fd5YNCg12

there Ya go
Click to expand...
I like that the item name is quantum board lm301b when clearly its not the diode they are using in their picture.. chinese sale reputation at its best lol..

I like multiple diodes on the same board but I never wanted to commit to such board as you need different drivers for each channel and im just not smart enough to figure all that out by myself so ill stick with the simple fake 304 boards for now lol
 
Viceman666 said:
I like that the item name is quantum board lm301b when clearly its not the diode they are using in their picture.. chinese sale reputation at its best lol..

I like multiple diodes on the same board but I never wanted to commit to such board as you need different drivers for each channel and im just not smart enough to figure all that out by myself so ill stick with the simple fake 304 boards for now lol
Click to expand...
You can just run them all on one driver I think.
 
I picked up a couple very cheap drivers to hopefully run some of these boards underdriven. Being new to LED, I wanted to make sure the drivers I have on hand were sufficient and was hoping for some help.

Meanwell hlg-320h-c700b to run 2 boards at 160w per board

Meanwell hlg-480h-c2800b to run 2 boards at 240w per board

Meanwell hlg-600h-48b to run 3 boards at 200w per board.

Thanks for the help and the time.
 
gibby84 said:
I picked up a couple very cheap drivers to hopefully run some of these boards underdriven. Being new to LED, I wanted to make sure the drivers I have on hand were sufficient and was hoping for some help.

Meanwell hlg-320h-c700b to run 2 boards at 160w per board

Meanwell hlg-480h-c2800b to run 2 boards at 240w per board

Meanwell hlg-600h-48b to run 3 boards at 200w per board.

Thanks for the help and the time.
Click to expand...
I think the voltage is only around 50ish I thought?

Also, the mean well 600 has 2 output cables that you're supposed to load evenly I'm pretty sure. So I'm not too sure it'd work?

What is the voltage of the boards exactly?
 
gibby84 said:
I picked up a couple very cheap drivers to hopefully run some of these boards underdriven. Being new to LED, I wanted to make sure the drivers I have on hand were sufficient and was hoping for some help.

Meanwell hlg-320h-c700b to run 2 boards at 160w per board

Meanwell hlg-480h-c2800b to run 2 boards at 240w per board

Meanwell hlg-600h-48b to run 3 boards at 200w per board.

Thanks for the help and the time.
Click to expand...


They are not the best fit with these boards and two boards with HLG-320H-C700B would not work because of too low voltage requirements from two boards. It would blink for that reason.
Meanwell HLG-320H-C700B has 457v but only 700mA. The boards have 43,2-49,6v so you would need 10 in series to max out this driver. You need the HLG-320H-C2800B for 2 boards in series and you would get ~130w per board. Take the HLG-320H-48B for 2 boards in parallel. Each board would get 3,35-3,5amps, thats 153-160w per board and would match much better.

HLG-480H-C2800B has 172v and 2,8A thats enough for 3 boards in series{3x 45v=~135v x 2,8A = 378w net).
HLG-480H-48B with parallel wiring is much better because you would use more of the driver output. Each board would run with ~45,6v and 3,34amps, thats 152w per board and a minimum of 456w. But all MW drivers have a bit more current so maybe 490w net and 515w at the wall.

HLG-600H-48B should be siutable with 3 boards in parallel but make sure the boards stay below 48v at 4,15amps. If its higher use HLG-600H-54B. Maximum voltage is 49,6v at 7,5A so I expect +48v especially when temps are low. With HLG-600H-54B it could be~48,5v x 3,7A, so 3x 180w per board, probably a bit more. 575w net and 600w at the wall. You need a multimeter to check that.

As you can see, it makes sense to use parallel wiring with these boards and Meanwell HLG driver. There is also the ELG series available in CV/CC. Different wattage, slightly lower efficiency but 10-20% cheaper. Its also easier to choose the correct driver because you could use all of the 48B ones from HLG-80H- up to the HLG-480H-48B. And if the voltage stays below 48v at +4amps you can even use the HLG-600 in 48B
It's also much more user friendly because 48 or 54v are not deadly but150v can be already!
 
Randomblame said:
They are not the best fit with these boards and two boards with HLG-320H-C700B would not work because of too low voltage requirements from two boards. It would blink for that reason.
Meanwell HLG-320H-C700B has 457v but only 700mA. The boards have 43,2-49,6v so you would need 10 in series to max out this driver. You need the HLG-320H-C2800B for 2 boards in series and you would get ~130w per board. Take the HLG-320H-48B for 2 boards in parallel. Each board would get 3,35-3,5amps, thats 153-160w per board and would match much better.

HLG-480H-C2800B has 172v and 2,8A thats enough for 3 boards in series{3x 45v=~135v x 2,8A = 378w net).
HLG-480H-48B with parallel wiring is much better because you would use more of the driver output. Each board would run with ~45,6v and 3,34amps, thats 152w per board and a minimum of 456w. But all MW drivers have a bit more current so maybe 490w net and 515w at the wall.

HLG-600H-48B should be siutable with 3 boards in parallel but make sure the boards stay below 48v at 4,15amps. If its higher use HLG-600H-54B. Maximum voltage is 49,6v at 7,5A so I expect +48v especially when temps are low. With HLG-600H-54B it could be~48,5v x 3,7A, so 3x 180w per board, probably a bit more. 575w net and 600w at the wall. You need a multimeter to check that.

As you can see, it makes sense to use parallel wiring with these boards and Meanwell HLG driver. There is also the ELG series available in CV/CC. Different wattage, slightly lower efficiency but 10-20% cheaper. Its also easier to choose the correct driver because you could use all of the 48B ones from HLG-80H- up to the HLG-480H-48B. And if the voltage stays below 48v at +4amps you can even use the HLG-600 in 48B
It's also much more user friendly because 48 or 54v are not deadly but150v can be already!
Click to expand...
How would've wire the boards on the 600 having 2 outputs on the driver?
 
2p+2p with 4 boards or all three in parallel just on one side and the other side probably open. Its just two outputs connected in parallel to one current source. I've not used them till now because they are far too big for my little 4x 2' area. But if you look at the block diagram you can see it's just one current source. There is a link at the end of the datasheet about wiring methods. There are probably different ways to use the double outputs. If you use both outputs you have half of the current on each side with identical LED circuits. But its also possible to use 2 boards on one and 1 board on the other side.
 

Attachments

Last edited:
You must log in or register to reply here.
Back
Top