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

Moflow

Well-Known Member
I got these to test.
Grow Board 280x900x2.0mm
(L29.52"xW9.18") , 3.0/W conductivity,2OZ,
16S50P, 129.6-372W, 43.2-49.6V,
800pcs Samsung 561C s6 leds.

They cost an "O" for 2 boards....... £200.
Awaiting HLG 320H 48A from TME, cost a "q" ....£80

In my area I can use these as a side wall of light running soft or overhead.

This is cheap n cheerful light option for tight feckers on a budget!

Now I'll just put on my Flak jacket and hard hat and press "create thread"20180310_133001.jpg 20180310_133028.jpg 20180310_132250-0.jpg 20180310_134308.jpg
 

Moflow

Well-Known Member
I got the driver yesterday so I done a bit of testing.
No heatsink.
I had the board in vertical position with the obligatory black tape stuck on back of board to take temps.
Ambient temperature in room was 18 Celsius.
20180313_124407.jpg
I ran it for an hour with both pots turned to max.
20180313_131437.jpg
Maximum was 49.3 volts.
Maximum was 7.54 amps
371 watts from 1 board.
20180313_161345.jpg
Back of board max temp was 63.3 oC
20180313_133238.jpg

I got a small 6 inch fan and had it blowing on back of board. 53.1 oC
20180313_164145.jpg
 

Viceman666

Well-Known Member
They are most likely not lm561c but rather lm561b+ as on your closeup of one led the dot appears very clearly and from what ive read/seen it is specific to the b+.. that being said its a +/- 10% effiency from the C.. i had seen those board ended up buying the 304 boards.. very satisfied and im sure you will too.. its good to know that they run cool even at max power without heatsink.. im looking to build another tent soon i may consider those big boards unless I feel like I can do a strips build.. but one thing at a time! Lol thanks for sharing man they look great

How much you paid for shipping?
 

Dave455

Well-Known Member
They are most likely not lm561c but rather lm561b+ as on your closeup of one led the dot appears very clearly and from what ive read/seen it is specific to the b+.. that being said its a +/- 10% effiency from the C.. i had seen those board ended up buying the 304 boards.. very satisfied and im sure you will too.. its good to know that they run cool even at max power without heatsink.. im looking to build another tent soon i may consider those big boards unless I feel like I can do a strips build.. but one thing at a time! Lol thanks for sharing man they look great

How much you paid for shipping?
where buy ? cost ?
 
Top