Ah this one.
And they bother to calculate PAR density
Actual Power Consumption: 360 Watt
LED Type: 6 High Powered BridgeLux Vero LED Chips (4000K)
Working Voltage: 85v – 265v
Power Supply: 42V @ 2.15A ( 4 Power Supply's )
Operating Temperature: 90°F -110°F (32.2°C – 43.3°C)
Full Spectrum: 400nm-800nm
Thermal Management: 6 x 80mm dual bearing cooling fans
Product Dimensions: 12.25” x 18.3” x 3"
Product Weight: 15 lbs
Lens Angle: 90 degree
Coverage Area: 48″ x 48″ @ 16” above canopy
(PAR): 1,800.4umol @ 14"
Lux: 144,000 @ 16"
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Consuming 360w at 40% gives 144wPAR and
$5.55 a PAR
Watt.
wait, I just noticed they are running at 2.15a so more like 30% efficient.