Available in 3500K, 4000K, and 5000K color temperatures, Plug & Play LEDT8 Lamps twist securely into existing lamp holders to convert existing T8 linear fluorescent troffers to energy-saving, extended-life (50,000 hr) LEDs. Models replace 2, 3, or 4 ft LED T8 tubes in ceiling- or wall-mounted housings and deliver evenly distributed, flicker-free, luminous white-light output. Consuming 9, 11, or 15 W depending on length, tubes are cUL US and DLC listed as well as FCC and RoHS compliant.