【Actual Power &Samsung, OSRAM】 Using 1632pcs Samsung LM301b with 288PCS OSRAM LEDs, the actual power draw is 650 Watts, this high power plant growing light could provide sufficient lighting for various growth stages of plants. This grows light fixture as a whole is ETL certificated, which means it's highly conformed to the safety standards.【Energy Efficiency】High Energy Efficiency with 2.8 umol/J, the PPF output of this plant light is 1820umol/s. This 660W fixture clearly could be an alternative to 1000W HPS.【Sunlike Spectrum】Samsung lm301b 3500k +Osram 660nm Red suitable for vegging to flowering and indoor grow light widely suit for commercial, home, grow tent, grow room, hydroponic, soil full-cycle growing.【Scientific Quiet Dissipation】NO FANS, Zero Noise. Compared to the quantum board led grow lights, it dissipates heat faster and achieves lower surface temperature - don't have to worry about burning your plants, and the light fixture would last a longer lifetime.【Friendly Use & Wide Coverage】Not just plug and play, but you could install it in a quarter. This 47"x44" big grow light, is perfect for a 5x5 ft grow tent. Without a tent, it's recommended to cover a 6x6 ft grow area for seedling, and 5x5 ft best for flowering. Input Voltage AC 100-277v (347-480V customized) Actual Power 650W/6 bars Power Factor >0.9 Dimming Range 0-10V/1-10V Light Distribution 120 degree Spectrum 3500K+660nm LED Brand Samsung lm301b+OSRAM  Number of chips 632pcs  LM301b 3500K +288PCS OSRAM LEDs 660nm PPF 1820umol/s Efficacy 2.8umol/J Fixture Dimensions 47*43.4*1.9inch (1194*1104*50mm) Fixture Weight 16KG Warranty 5 years Lifespan >50,000 hours CRI >80 Certificate ETL&cETL, DLC, CE, RoHS PACKAGE INCLUDES: 1 x LED Quantum Board1 x Hanging Kit1 x Installation Accessories1 x Power Cord RECOMMENDED FOR: Grow tents, Grow rooms, Large indoor grows Soil, hydroponic, aeroponic, or aquaponic systems MANUFACTURER'S WARRANTY: 5 years 1) Eco Farm is a top-trusted online retailer offering honest grow advice and top-of-the-line LED grow lights and other grow/harvest/extraction equipment.2) Reliable International Shipping AvailableNearly all of our products can be shipped internationally using DHL or similar couriers.3) 100% Quality GuaranteeYou will buy confidently from us since only sell new, official products (no used items or clones).4) Safe, Secure, Discrete TransactionsAll card payments are processed through our encrypted SSL security processing system. Your identity is always protected.5) Hassle-Free ReturnsAnd just in case your purchase was not up to your standards, we offer return if you are not 100% satisfied for any reason.