Convert your existing fluorescent fixture to LED technology with the Feit Electric FC8/840/LED LED circular replacement. This 4100K Cool White lamp produces 1400 lumens using only 15 watts - up to 32% less energy than an equivalent fluorescent lamp. These lamps have an average life of 25,000 hours/22 years, are RoHS compliant, and are 100% mercury free. Installation is easy: no replacement / removal of ballast or installation of LED driver required.