LED Panel Light Bulbs, Great replacement of Fluorescent Lights, Dual End Powered, Existing ballast needs to be removed or by-passed. ENERGY SAVING: Save at least 54% on your electricity bill. Reduce re-lamp frequency with a lifetime of 50,000+ rated hours (17 years with 8 hours/day 365 days). EASY INSTALLATION and Widely application: International standard shape light. easily fitted Instead of traditional fluorescent panel lamps. Bulbs are perfect for workshop, basement, garage, barn. Like all other LED lights on market, our light take the less fragile plastic covers, so the special flame retardant material on the double ends is very important for avoiding the risk of fire disaster, which may caused by unexpected short circuit etc.