Reliable Quality Die-cast aluminum construction, strong and durable. The warehouse lighting has a surge protection rating of 6000V an IP65 waterproof rating, and good heat dissipation capability, which protects the Gowan lamp from extreme weather and ensures safe use in thunderstorm weather. The UFO light has a life span of 50,000 hours, Widely Uses 5000K daylight, 150W provides 21700 lumens, very bright; 120-277V working voltage can achieve 0-10V brightness adjustment, you can choose brightness according to the actual needs, suitable for a variety of places, such as warehouses, supermarkets, factories, stadiums, garages, large stores and so on. Save Energy UL certification ensures excellent corrosion resistance and heat dissipation. The 50,000-hour service life saves you money by avoiding frequent bulb changes. It comes with a 3-year warranty to protect your rights as a consumer. Specifications: Wattage: 150W Luminous flux: 21,700lm Voltage: AC120-277V Dimmable: 0-10V CRI80 Lifespan: 50,000hrs Waterproof rating: IP65 CCT: 5000K Working temperature: -4°F-122°F Material: Aluminum