Feit Electric’s 40-watt Direct Replacement (Type A) High Output Non-Dimmable Linear LED Tubes replace F40T12 or T12 fluorescent and LED tubes. They work with most existing ballasts for quick and easy plug-and-play installation, with no rewiring necessary. These 3600-lumen High Output LED lights produce 2x more light than traditional LED tubes. Versatile 4000K Cool White light provides clean, mid-range light for both living and workspaces. 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. Their higher light output also works in high ceilings and large spaces. T1248HO/840/LED/2/RP lights turn on instantly, offering flicker-free full illumination with no warmup time compared to fluorescent tubes. 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. Enjoy lower maintenance costs compared to traditional fluorescent linear lights. The estimated energy cost is only $4.82 per year. Switch to Type A LED linear lights for your space and get up to 35,000 hours of superior light. That's 31.9 years with 3 hours of daily use.