The Kobi Electric K4R0 (P/N TR2-22-34-40-MV) 34W volumetric dual lens LED troffer has a rated voltage of 120-277V with a luminosity of 3850Lm and color temperature of 4000K. It has a life expectancy over 50,000 hrs and an operating temperature range of -4 F to 113 F (-20 C to 45 C). It is intended to replace recessed fluorescent tube fixtures. Can be used in damp locations. Note: This type of light is not made for emergency or exit lights.