Jarsant T8 4ft Cool White LED Tube Light Bulb Replacement for 40W Equivalent Fluorescent Grow Lamp, 18W 2000Lm 6500K, Ballast Removal Installation, Dual-Ended Power, Frosted Cover and AL, 6-pack aluminum SUPER BRIGHT LIGHT: High efficient output 2000 lumens 180 wide angle ultrahigh brightness, which means you don't need additional white cover to reflect the light POWER SAVER: Replace 40W equivalent fluorescent grow tubes and need to remove 10W ballast, which means saving more than 32W power.High efficient output 2000 lumens 120 wide angle ultrahigh brightness, which means you don't need additional white cover to reflect the light T8 TUBE BULB SHAPE: Not necessary to replace holder or socket. International standard shape for replacing with fluorescents WORKS WITHOUT BALLAST: This product is directed current, will not have blinking. No hazardous materials, no radiation, eco-friendly, high quality light source LAST LONG WITH STAINLESS COVER: Premium linear LED will serve more than 50,000 rated hours (more than 10 times the life of the fluorescents). Plastic and aluminum cover that wont break or rust