Lightess T8 Led Tube,Dual-End Powered, 18W (40W equivalent), 6000K (Super Bright White), Clear Cover, Pack of 4, transparent Available with clear and frosted cover Save more than 55% on your electricity bill! Replace 36W fluorescent tubes by 20W LED. Reduce re-lamp frequency with a lifetime of 45,000+ rated hours Easy Installation with no tombstone hassle. International standard shape for T8 4FT LED Tube lights. Easily fitted instead of traditional fluorescent tube lamps, bypass the starter and ballast before installation for best results. Ideal for both indoor and outdoor use. Can operate in very low temperatures