(4 pack) DKC LED 4FT 18W LED Tube light, UL Listed, Fluorescent Replacement, Frosted Cover, 5500K Cool White, 2160 Lumen, 5 year warranty, double end power T8 Replacement bulb; Ballast wiring bypass required 18W Super Bright LED, 2000 lumens of 5500K light project at a 120 angle IP44 Water Splash Resistant rated. Ok for use indoors or outdoors Save up to 50% on your energy bill when replacing fluorescent bulbs Shatter resistant aluminum and plastic construction. No more shattered fluorescent bulbs!