... lighting kit HID ligth kits, hydroponic lighting kitThe light kit including:Digital Ballast, 1000W/600W/ ... : >0.99 4) Efficiency: 95 %( Max) 5) THD: <10% 6) Current crest factor: <1.5 7) Max. Lamp distance from ballast: 15m ... output power 4) Light weight, small size, non-flickering, noiseless 5) Fast start-up, reach full brightness quickly 6) Operate HPS ...