LEDone upholds the highest standards for all our products with optimal performance and safety. Covert your existing fluorescent fixture to our type B single or double-ended T8 LED tube lights. These 4FT LED shop light tubes produce 1750 lumens of 5000K using ONLY 9 watts. Ballast bypass will save you both time and money. Our T8 tube lamp has no mercury or UV, flicker-free for residential or commercial use. ?? Color temperature: 5000K ?? Brightness: 1750 Lumens ?? Watt: 9W ?? 3 Years Warranty