Specification: 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: HighTech SMD2590PCS LED 8 bar(number): Total in 2590pcs :576pcs 660nmRed lights+288pcs 6000k White Leds +1728pcs 3000k white lights 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 SMD Chips Driver: UL Certified driver Service life: 500,000 hours Light Color: 3500K Coverage area: Flowering footprint: 5'x5' (16 sq ft) Vegetative footprint: 6'x6' (36 sq ft).