Mars II 900 Full Spectrum Hydroponic Grow Light

Features: 3.5 x 3.5 ft core coverage 5.5 x 5.5 ft maximum coverage 1.8g/w maximum yield 757 ppfd Replaces 450W HID/MH 364 W @ 110 V / 354 W @ 220 V 3 year manufacturer warranty Specifications: Hanging distance: Seedling: 24-30" Veg: 16-24" Flowering: 12-16" ETL, CE, RoHs certifications 440, 460, 630, 660, 730 (IR), 2700-3000k spectrum 85-265 V 3.5 A @ 110 V / 1.8 A @ 220 V 1432 BTU 58.7 dB EU, UK, AU, USA, Japan plug type 90-120° viewing angle 50k hours life span <91% humidity 17 x 17 x 3.5" 19 lbs