Fixture size is approximately 80cm x 55cm.
Consists of 720 Samsung LM301B LEDs, spectrum depending on PCB stock:
Assembled, currently available:
144 * 4000K LM301B
576 * 3000K LM301B
(3200K spectrum, better for flowering than vegging, but can veg too).
Slightly 'logarithmic' placement, for more even PPFD.
Uses a 94% efficient HLG-240 driver. Because of lower temperature and higher diode count, our light will be at least 10% more efficient than typical Chinese 2*QB288 fixture designs for 240W.
According to the Samsung LED Calculator, the fixture has an approximate efficiency of 199.6lm/W pre-driver, and 187.62lm/W after driver losses, giving it > 2.7uMol/J efficacy
