Hybridway
Well-Known Member
Oh, I completely understand.This post shows hat you do not understand why role efficiency plays in converting electricity to heat/usable light. Whats the rated current for the leds on the cloak compared to the driving current? It needs to be around 50% of max power to be in the efficient category. The light I also stated would put out 984PPFD in a 80SQ/F room for 3000W. Hard to beat those numbers. And all while putting out less of heat as ONE 1000W DE HPS....
CXB3590CD36V3500K 80 COBS @1.05A ON 5.88 PROFILE HEATSINK
80 SQ.FT. CANOPY 94% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall: 3024.47
Cobs power watts: 2843
Total voltage forward: 2708
Total lumens: 554385
Total PAR watts assuming 10% loss: 1574
Total PPF: 7319.1
PPFD based on canopy area: 984.78
PAR watts per sq.ft.: 19.68
Cob efficiency: 61.5%
Power watts per sq.ft.: 35.54
Voltage forward per cob: 33.85
Lumens per watt: 195.0
Heatsink riser thickness / number of fins / fin's length: 0.27in/14/1.0in
Heatsink area per inch: 260.01 cm^2
Total heat watts: 1095
umol/s/W / CRI: 4.65 / Estimated
Heatsink length passive cooling @120cm^2/heatwatt: 505 inches
Heatsink length active cooling @40cm^2/heatwatt: 168 inches
COB cost dollar per PAR watt: $2.42
Electric cost @12/12 in 30 days: $163.82
Electric cost @18/6 in 30 days: $245.48
Cost per cob: $47.62
Heatsink cost per inch cut: $1.74
Total cobs cost: $3810
Total heatsink passive cooling cost: $879
Total heatsink active cooling cost: $292
What you don't seam to understand is that there's heat but it's not that bad. And all lights produce heat.
More efficient lifts produce less, yeah, we all get it.