LED troffer retrofit kit 2x2 with power and color selection. Steel and Aluminum frame. Matte white finish. The entire fixture functions as a heat sink to keep the LEDs cooler to prolong the life of the light. 120-277V input standard, -20°C to 50°C, -4°F to 122°F, 0-10V dimming comes standard. Suitable for use with LED dimmers. Fits most preexisting troffers. 5-year limited warranty. Actual performance may differ as a result of end-user environment and application.