Best COB grow light 2018? - Cree CXB3590 Vs Luminus CXM32 COB test and comparison

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What is the best COB LEd for grow lights? The ultimate PAR output test of the Cree CXB3590 at low and high wattage compared to the Luminus CXM


Cree performance:
50W PPFD output is 104 - PPFD/Watt= 2.08
100W PPFD output is 185 - PPFD/Watt = 1.85

Luminus performance:
50W PPFD output is 118 - PPFD/Watt = 2.37
100W PPFD output is 212 - PPFD/Watt = 2.12

The above Wattages are the wattage at the LED and do not include led driver inefficiency.
Each LED tested in the MIGRO heatsink and Lens.
PPFD output tested at 30cm hanging height and 64 PPFD measurements taken over a 1.2m x 1.2m test area.
PPFD sensor used: Apogee SQ500
Bench power supply

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