The Light Efficient Design LED-8232M345D-HV is a 140W high bay retrofit LED light. It has a rated voltage of 277-480VAC with a luminosity of 19500Lm and selectable color temperature of 3000-5000K. Dynamic temperature control with advanced active cooling Color temperature selected via a switch on the housing Can be used in damp locations Housing is protected from insects & dust 6kA surge protection Bypass ballast during installation Dimmable to 20% with a wired 0-10V dimming circuit Made for use in enclosed fixtures Specifications Bulb Type- High Bay Retrofit Base Type- Mogul EX39 (39mm diameter) Dimensions- 8.7" Width x 10.5" Length Lumens- 19500 Input Voltage- 277-480VAC Output Power- 140 Watts CRI- >80 Life Expectancy- Up to 50,000 hrs Replaces- Lamps up to 400W Dimmable- Yes Color Temperature- 3000K, 4000K, or 5000K Operating Temperature- -40 F to 113 F Approvals- UL & CUL Listed, RoHS Compliant, CE, FCC, DLC Listed Warranty- 5 Year Manufacturer's Warranty