Goodlite G-20411  22-watt 4-Feet T8 T10 or T12 LED Tube 32W 40W Fluorescent Bulb Replacement, UL and DLC Approved Single End Power, Clear 4FT 22 Watt T8 LED Tube with UL+DLC Approval Single-end Power G13 Begin 40W 32W Fluorescent Tube Daylight Color No Flickering/Noise-Free Design 2400 Lumens, 50,000 Hours Rated Average Life Internal Driver, One side Power, CUL & DLC Listed- Compliance to North American Safety And Efficient Standards Ballast/starter of existing fixture must be bypassed