Feit Electric’s 8-watt Non-Dimmable Linear Fluorescent Lights replace F8T5 or T5 fluorescent tubes. Each light produces 380 lumens of 4100K Cool White light for both residential and commercial spaces. Replace older, lumen depreciated light bulbs with newer fluorescent light bulbs to maintain full brightness. Use them in living rooms, restaurants, hotel lobbies, and retail. F8T5/CW/RP lights have an estimated energy cost of only $0.96 per year. Switch to Feit Electric linear tubes for your space and get up to 7,000 hours of superior light. That's 6.4 years based on 3 hours of daily use.