The Westgate Mfg T8-EZ6-GS-4FT-18W-40K-F is a 4 ft. 18W Type A+B LED T8 glass tube for retrofit or ballast-bypass installations in commercial and institutional spaces requiring neutral white light with diffused output. It delivers 2,160 lumens at 4000K with a frosted glass lens and wide 140 beam angle on 120277VAC, non-dimmable. UL Listed and DLC qualified with a 50,000-hour rated life and damp location rating.