Feit Electric's 15-Watt Daylight Direct Replacement or Ballast Bypass (Type AB) Non-Dimmable U-Bend LED Lamp replaces FB32T8/U fluorescent tubes. Replace T8 U-Bend fluorescent tubes with plug-and-play direct replacement using the existing electronic ballast or T8 and T12 tubes by direct wire installation bypassing the ballast. Use it as a plug and play replacement and when the ballast fails, bypass the ballast and continue using the same fixture. Save on light bulbs and new fixtures. These 2100 Lumens u-shaped LED lights emits the same light output level as traditional bulbs while using less energy. These bright 5000K Daylight White lights provide crisp light for both residential and commercial spaces. Use them for multi-purpose lighting or task lighting wherever it is important to feel refreshed and ready to get things done. An ideal choice for most fluorescent linear tube replacement applications, use them in offices, garages, workspaces, warehouses and more. Experience superior high color-rendering, for more vibrant, true-to-life colors. T848/850/AB/U6/LED lights offer flicker-free instant-on illumination with no warm-up time. They are mercury-free and shatter-resistant, for easy disposal. Lower heat emission extends the life of the tube and prevents lamp ends from blackening. The estimated energy cost is only $1.81 per year. Switch to Type AB LED linear lights for your space and get up to 50,000-hours of superior light. That's 45.7-years with 3-hours of daily use.