Feit Electric’s 8-watt Non-Dimmable Linear Fluorescent Lights replace F8T5 or T5 fluorescent tubes. Each light produces 350 lumens of 6500K Daylight Deluxe White light for both residential and commercial spaces. Use them in closets to see every wardrobe detail. They are ideal for retail stores, gyms, convenience stores, and hospitals, and high-traffic locations for an alert or focused mood. Replace older, lumen depreciated light bulbs with newer fluorescent light bulbs to maintain full brightness. F8T5/D/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.