Dual-usus, extendere vel retractare, libere accommodare lucem vectis spatio ad diversam PPFD（photosyntheticam photon fluxum densitatis formare , area coverage et vestigium diversum.
Post extensionem, minimum 1000W coverage est 6 ab 4ft.
Post extensionem, minimum coverage de 730W est 4 ab 4ft.
Lumen quantum sufficit considerans ducatur et efficacia wattage
~1500+ umol/s per 5'x5' area
~1100-1500 umol/s per 4'x4' area
~600-850 umol/s per 3'x3' area
~275-375 umol/s per 2'x2' area
PPFD sufficiens coverage pro scaena plantae: veg: 300-600umol/m2/s, flos: 600-1000umol/m2/s
