Convert your existing fluorescent fixture to LED technology with the Feit Electric T96/840/AB/LED 8ft LED dual mode linear lamp. This non-dimmable T8/T12 replacement produces 5000 lumens of 4000K Cool White light using only 43 watts - up to 27% less energy than an equivalent 59-watt fluorescent. These versatile bulbs can be used either as plug-and-play replacements using existing ballast or can operate without a ballast after basic rewiring of the fixture. Each shatter-resistant fluorescent replacement has an average life of 50,000 hours/45 years, is RoHS compliant, and is 100% mercury free.