Convert your existing fluorescent fixture to LED technology with Feit Electric T48/840/LEDG2 4ft. T8/T12 LED Plug and Play Lamps. Installation is easy, no replacing or rewiring of the fixture is required. These 4100K Cool White lamps produce 1750 lumens using only 14 watts - up to 65% less energy than equivalent 32 and 40-watt fluorescent lamps. Get instant on to full brightness even in sub-zero temperatures with relatively cool running performance. Feit Electric shatterproof T8/T12 lamps have an average life of 50,000 hours/45.7 years, are RoHS compliant, and are 100% mercury free.