2 ft. x 2 ft. retrofit kit for fluorescent troffers. High efficacy - 127 lm/W. Low-glare diffuser provides comfortable, uniform light. 0-10V Dimming - supports compliance with Title 24. Door type retrofit - uses existing troffer housing, installs in less than 5 minutes. Excellent solution for no hassle, low cost upgrade of fluorescent troffers in any ceiling type. Low wattage (22W) for maximum energy savings. 3500K - Neutral White. 100-277V compatible.