New in Box, cost $65 Ultra Slim UFO Design ]: The LED high bay lights adopts integrated super slim design, it gets smaller size and the strong sense of industry appearance. The porous structure allows the casing to balance the pressure on both sides of the housing when the temperature and pressure change, it improves the product lifetime. [ Efficient Cooling ]: Led bay light adopts thick aluminum cold forging molding,the structure is sturdy and stable. It uses finned heat dissipation process, which gets large heat dissipation area and excellent heat dissipation effect. It also extends the lamp lifetime. Its paint surface treatment prevents it away from oxidation, corrosion, rust. [ High Brightness & No Strobe ]: High bay light 200W, 20000LM provides enough brightness at night. The LED high bay light uses bulbs of superior quality for bright illumination. The brightness is several times higher than traditional light bulbs, but you can save more electricity. No strobe light failure low. [ IP65 Waterproof ]: UFO high bay light sealing is perfect. Widely fits for outdoor lighting, indoor stadium, square, billboards, factory floor, warehouse, gymnasium and other places where lighting is needed. Please note that the light can not be used IN the water. Note: Hanging chain is not included in the package! [ Long Lifespan ]: The average life of led high bay light is more than 30000 hours, it can save not only the cost of lamps replacement, but it can also reduce the maintenance costs.