Convert your existing fluorescent fixture to LED technology with the Feit Electric T848/840/LEDG2/2 - 4ft. T8 LED Plug and Play 2-pack lamps. These 4100K cool white non-dimmable tubes produce a similar fluorescent lamp output (1800 lumens) uses 18 watts 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.