Convert your existing fluorescent fixture to LED technology with the Feit Electric T848/840/LEDG2/2 4 ft T8 LED plug-and-play two pack lamps. These 4100K cool white, non-dimmable tubes produce a similar fluorescent lamp output (1800 Lumens), uses 18 W of electricity and up to 44% less energy than a standard fluorescent lamp. Get instant on to full brightness even in sub-zero temperatures with relatively cool running performance.