Feit Electric's 40-watt Ballast Bypass (Type B) Non-dimmable Linear Led Tubes replace T8 and T12 fluorescent and Led tubes. They require direct wiring by bypassing the ballast. This added installation step enables efficient operation and less maintenance over time. They emit 5000 lumens of bright Led light. These bluish white 6500K Daylight Deluxe white lights allow you to see objects in finer detail and create a vibrant mood 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 where customers and employees need to feel alert or focused. T96/865/B/Ledg2/2 Led linear tubes offer flicker-free, instant-on illumination with no warmup time needed to enjoy superior light quality. They are mercury-free, with a shatter-resistant coating for safe and easy disposal. Each high-quality bulb offers accurate color-rendering, for more vibrant, true-to-life colors. Lower heat emission extends the life of the tube and ends do not turn black or burn with age. The estimated energy cost is only $4.82 per year, saving energy over equivalent fluorescent tubes. Switch to Led linear light bulbs and get up to 35,000 hours of life. That's 32 years of superior light with average daily use.