40 Watt
$155 4 1 watt Blue light LEDs: 450nm (nanometer) wave length 32 1 watt Red light LEDs: 660nm (nanometer) wave length
$140
$
55 Watt
40 Blue light LEDs: 460nm (nanometer) wave length 72 Red light LEDs: 635nm (nanometer) wave length 10mm LEDs
$170 Coverage up to 12 sq ft 90 1 watt LEDs Ratio of Red and Blue in R&B is 8:1
$1399
$1795