SleekLighting 18 Watt T8 Led Tube Light (Clear) - 4 Foot, 5500k, 1890 Lumen, Beam Angle:120d, 50,000 Hours -UL Approved- "No Rewiring Required" Just Plug and Go - pack of 4 This tube can work both with ballast or without ballast,Compatible to all instant start electronic ballast No rewiring required-Ballast compatible replacement tube-UL certified Hassle-free and easy installation Low energy consumption, Ballast bypass NOT required Emits bright and efficient LED light