Hyperikon T8, 4ft LED Light Tube [Rotatable End Caps], Dual-End Powered - 15W (36W equivalent) - 1850 Lumens, 4000K (Daylight Glow), Clear Cover, UL-Listed - (Pack of 4) SAVE 59% INSTANTLY - Save 59% on your electricity bill! Replace 36W fluorescent tubes with 15W LED. 45,000 HOUR LIFETIME - With an astonishing life rating of 45,000 hours, or 21 years with 6 hrs/day of use, replacing your tubes is now a thing of the past. TURNS ON INSTANTLY - Our 15W Rotatable LED Light Tube is engineered to light instantly when the switch is flipped. No more waiting for old fluorescent tubes to warm up or turn all the way on! ROTATABLE ENDINGS - The rotating capability of this tube allows for compatibility with ANY fixture configuration. Rotates up to 90 degrees in either direction for maximum versatility. HASSLE-FREE WARRANTY - Hyperikons five-year unlimited warranty means weve got you covered! Contact us for an easy and fast replacement.