Closer to $ 600 but yes and it would almost be 2 times the PPFD. Not hard to work out... and to give you something that is cheaper.... look lower.
CXB3590DD36V5000K 8 COBS @2.4A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall:
760.87
Cobs power watts: 700
Total voltage forward: 292
Total lumens: 121842
Total PAR watts assuming 10% loss: 338
Total PPF: 1510.86
PPFD based on canopy area: 1016.42
PAR watts per sq.ft.: 21.13
Cob efficiency: 53.72%
Power watts per sq.ft.: 43.75
Voltage forward per cob: 36.48
Lumens per watt: 174.06
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: 324
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 150 inches
Heatsink length active cooling @40cm^2/heatwatt: 50 inches
COB cost dollar per PAR watt: $1.1
Electric cost
@12/12 in 30 days: $41.59
Electric cost @18/6 in 30 days: $62.13
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost:
$372
Total heatsink passive cooling cost: $261
Total heatsink active cooling cost:
$87
The same as a gavita PPFD wise. $469 about.
CXB3590DD36V5000K 4 COBS @3.6A ON 5.88 PROFILE HEATSINK
16 SQ.FT. CANOPY 92% EFFICIENT DRIVER @15 CENTS PER KWH
Total power watts at the wall:
597.83
Cobs power watts: 550
Total voltage forward: 153
Total lumens: 77402
Total PAR watts assuming 10% loss: 215
Total PPF: 961.05
PPFD based on canopy area:
646.54
PAR watts per sq.ft.: 13.44
Cob efficiency: 43.44%
Power watts per sq.ft.: 34.38
Voltage forward per cob: 38.22
Lumens per watt: 140.73
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: 311
umol/s/W / CRI: 4.47 / 70CRI
Heatsink length passive cooling @120cm^2/heatwatt: 144 inches
Heatsink length active cooling @40cm^2/heatwatt: 48 inches
COB cost dollar per PAR watt: $0.87
Electric cost
@12/12 in 30 days: $32.78
Electric cost @18/6 in 30 days: $48.92
Cost per cob: $46.5
Heatsink cost per inch cut: $1.74
Total cobs cost:
$186
Total heatsink passive cooling cost: $251
Total heatsink active cooling cost: $
83