unbindmoney
Active Member
Hey guys,
So after a good amount of research I have decided on this DIY COB setup that will generate 571.2W with a 65:35 (Photons:Heat Ratio). I am using a 4'x4'x7' iPyarmid Grow Tent and actually still have some questions on ventilation. But here is what I have in mind for my light setup (which I think was the hardest part in my learning).
HLG-120H-C700B x 4 = $188
http://www.mouser.com/ProductDetail/Mean-Well/HLG-120H-C700B/?qs=sGAEpiMZZMt5PRBMPTWcafxiK6L3g9qC7xyXHlSeLXI=
One of these drivers will generate 700 ma and 107-215V and I plan to power 6 34V COBs (@700mA) in them.
Citizen1212 CLU048-1212 80CRI 3500k x24 = $318
https://cobkits.com/product/citizen-clu048-1212-80cri-choice-of-color-temps/
Heatsinkusa 44"x3.5" x4 = $203
http://www.heatsinkusa.com/3-500-wide-extruded-aluminum-heatsink/
I did the calculation on these since my 6 COB setup in my ELG-150-C700B will generate 142.8W and with a photon:heat ratio of 65:35, I will generate 49.98 Heat Watts and as a passive heatsink needs 17 inch square per Heat Watt (49.98 x 17 = ~850 inch square). The 3.5" Heatsink from HUSA cools per 19.60 square inch (according to https://www.rollitup.org/t/heatsinks-for-diy-led-lamps.851907/) 19.60 x 44 = 862 inch square, more than enough to cover the ~850 inch square I need. I also think the 44" will have a nice spread in my 48"x48" tent.
I will wire my cobs in a Series with one driver supporting 6 COBs and one Heatsink. So in case one row malfunctions I will have an additional 3 rows for safety.
Two questions: 1) How do you guys think I can align my 4 rows in a neat fashion inside my 48"x48" tent. 2) I originally planned on using Cree CXB3590s but the costs of the Citizens really appealed to me and after reading that it runs optimally below 50W and as I am using a 700ma Driver that will generate 23.8W per COB, I think it's a perfect match.) I guess the question is how much of a drop-off is it from the CXB3590s?
Total Cost: ~$689 (before taxes/shipping)
Can say I've learned a shit ton from you guys over the past week, thanks!
So after a good amount of research I have decided on this DIY COB setup that will generate 571.2W with a 65:35 (Photons:Heat Ratio). I am using a 4'x4'x7' iPyarmid Grow Tent and actually still have some questions on ventilation. But here is what I have in mind for my light setup (which I think was the hardest part in my learning).
HLG-120H-C700B x 4 = $188
http://www.mouser.com/ProductDetail/Mean-Well/HLG-120H-C700B/?qs=sGAEpiMZZMt5PRBMPTWcafxiK6L3g9qC7xyXHlSeLXI=
One of these drivers will generate 700 ma and 107-215V and I plan to power 6 34V COBs (@700mA) in them.
Citizen1212 CLU048-1212 80CRI 3500k x24 = $318
https://cobkits.com/product/citizen-clu048-1212-80cri-choice-of-color-temps/
Heatsinkusa 44"x3.5" x4 = $203
http://www.heatsinkusa.com/3-500-wide-extruded-aluminum-heatsink/
I did the calculation on these since my 6 COB setup in my ELG-150-C700B will generate 142.8W and with a photon:heat ratio of 65:35, I will generate 49.98 Heat Watts and as a passive heatsink needs 17 inch square per Heat Watt (49.98 x 17 = ~850 inch square). The 3.5" Heatsink from HUSA cools per 19.60 square inch (according to https://www.rollitup.org/t/heatsinks-for-diy-led-lamps.851907/) 19.60 x 44 = 862 inch square, more than enough to cover the ~850 inch square I need. I also think the 44" will have a nice spread in my 48"x48" tent.
I will wire my cobs in a Series with one driver supporting 6 COBs and one Heatsink. So in case one row malfunctions I will have an additional 3 rows for safety.
Two questions: 1) How do you guys think I can align my 4 rows in a neat fashion inside my 48"x48" tent. 2) I originally planned on using Cree CXB3590s but the costs of the Citizens really appealed to me and after reading that it runs optimally below 50W and as I am using a 700ma Driver that will generate 23.8W per COB, I think it's a perfect match.) I guess the question is how much of a drop-off is it from the CXB3590s?
Total Cost: ~$689 (before taxes/shipping)
Can say I've learned a shit ton from you guys over the past week, thanks!
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