400W, 3000K/4000K/5000K Linear High Bay Light. Constructed of a robust durable housing, high-transmittance PC diffusion cover, long-lasting led chips and energy-efficent LED driver, the commercial led high bay lighting fixtures ensure high performance for more than 50,000-hour of continuous use or 23-years when on every day for 6-hours/day. Up to 80% Energy Savings. The LED linear high bay light emits an extreme 60000 Lumens of premium LEDs with 3000K/4000K/5000K adjustable color temperature. This fixture providing a high efficient and uniform lighting, no UV or IR radiation, no hum, up to 80% energy saving. With an enclosed power supply and covered optics, the LED high bay lights are designed for durability in commercial/industrial applications. With a beam angle of 120°, high efficency, made them become a perfect solution for those commercial areas where need bright lighting, such as garages, warehouses, gyms, manufacturing space and large retail spaces. These high bay lights can be easily hung to the ceiling with the included chains and V-hooks. Color Temperature: 3,000K/4,000K/5,000K. Input Voltage: AC100-277V 50/60Hz. LED Type: SMD3030 LED chips with 150Lm/W. Operation temperature: -40°F (-40°C) – 104°F (40°C). 1X 400W Adjustable Linear High Bay Light 2X Hook 2X Mounting Clips 4X M4 Screws 4X Plastic Anchors 4ft Suspend Chain. We alow 7 days time for you pay for the item. We strive to ensure 100% satisfaction for each and every one of our customers. Ft production area &100 employees professional team. UL, cUL, cETL, ETL, DLC approved products standard produce by certified request. 6 Separately production line strictly control quality & speed production. Professional Aging test machine&SMT Machine&IES test system&Reflow oven. Is our confidence in quality! Unhappy with the purchasing? We will try our best to help you solve any problem. If there is nothing wrong with the items, but you change your mind, you can return the items to us and must keep in the original box. Items damaged or missing parts when arrival? Please offer us the photo of the items you received with the package, we will replace it or resend. You are guaranteed by our 100% satisfaction on all products. Office Time: 9:30 – 18:30, Monday – Saturday (UTC+8). 240W LED Flood Light Outdoor Yard Billboard Security 30000LM Warehouse Garage. LED Shoebox Canopy Fixture Retrofit Kit Light 150W Parking Lot Street Large Area. LED UFO High Bay Light 300Watt 50000LM Commercial Warehouse Factory Shop Lights. 80W LED Corn Light 300Watt MH HPS Equivalent Parking Lot Factory Basement Bulb. 2-PACK 100W LED Corn Light AC480V 347V E39 Mogul Base Industrial Workshop Bulb.