Hyperikon T8 T10 T12 LED Tube Light 4 Foot, 18W=40W, Dual & Single End Powered, Works with or Without Ballast, Frosted Lens, UL, DLC, Daylight White, 6 PackColor:Daylight White Hyperikon 4FT LED Plug-and-Play Glass Tube Lights - 4ft, 18W, frosted (Type A + Type B) With Hyperikon’s 4ft plug-and-play tubes, fluorescent replacement has never been easier. Retrofit is now instant fit! These frosted glass LED tube lights are ballast compatible, working seamlessly with more than 200 different nonmagnetic electronic ballasts for an instant, direct fit conversion, saving you 42% on lighting costs. For even greater cost savings, these tubes can also be installed as single-end powered tubes by removing the ballast for up to 60% in savings. These LED tubes work with or without the existing ballast, giving you the choice in installation and the flexibility to easily rewire the tubes when the ballast reaches the end of its life. Hyperikon glass LED Pulg-n-Play tubes are designed with patented technology and are double-insulated to be the safest choice for your projects. The tubes are also UL-listed for safety and quality. These 4ft glass tubes are a high quality lighting choice for fluorescent replacements in these applications and more: LED shop lights for the garage Kitchen lighting Office ceiling lights Workspace and warehouse lighting Storefronts and displays Grocery stores and retailers School buildings, classrooms and hallways Hospitals and healthcare provider offices NOTE: Due to a manufacturing misprint, the packaging and labels for these tubes may read “dual-end powered.” Please note that if you choose to do a ballast bypass installation, it must be rewired for single-ended power.