Model: PH-FD LED grow light Shell material: aluminum Power:640W+/5% HPS equivalent: 2000 watts Voltage:120-277V AC, 347-480V AC, 50/60 Hz LEDs: hIigh Tech SAMSUNG LM281B2592PCS 3. LED bar(number): 576pcs 660nmRed lights+288pcs 6000k White Leds +1728pcs 3000k white lights Total in 2592pcs : Spectrum:Full spectrum, 3500K,6000K,660nm,730nm for seed to flower growth Driver:External dimmable Mounting Height:≥ 6” Above Canopy Dimming:Knob dimmer, Dimension:41.7*40.8*3.9inch (1060*1040*1000mm) Input voltage: 100 ~ 240V AC Wavelength: full spectrum 380nm ~ 780nm Frequency: 50Hz / 60Hz LED brand: High Tech SAMSUNG LM281B Chips Driver: UL Certified driver Service life: 50000 hours Light Color: 3500K Coverage area: Flowering footprint: 5.5'x5.5' (16 sq ft) Vegetative footprint: 6.5'x6.5' (36 sq ft).