<b>Long lifetime and 5 years warranty: </b><br> Long lifespan: 25,000 hours VS 1,000 hours ( for CFL bulbs)</b> <br>5-Year Warranty: you can sure buy with confidence, any problems please feel free to contact us.<br><br> <b>Wide Applications: </b><br> A21 shape with E26 base, easy to install<br> Ideal for home, kitchen, garage, warehouse, basement, mall, barn, office, school, hospital, shopping mall, workshop, logistic center, stadium, hotel, church, studio, GYM etc.<br><br> <b>Pleasant on your eyes:</b><br> Flicker-free and instant-on lighting for eye care<br>Natural daylight 5000K to give off a bright quality light without harsh glares<br> CRI 80+ to provide true color temperature experience<br><br> <b>Customer Notice:</b><br> 1. Please turn off power before installing or changing assembly parts.<br> 2. Ideal for both indoor and protected outdoor fixtures.<br> 3. Forbidden to use in enclosed fixtures.<br><br> <b>SANSI Advantages--</b>patented ceramic heat dissipation technology(CHDT)<br> Sansi Ceramic LEDs VS Aluminum LEDs<br> Dissipates heat more efficiently: Unlike other LEDs, whose chips must be molded on a PC board with a thermal adhesive, Sansi LEDs save this by molding chips directly on the ceramic. Fewer pieces mean better cooling efficiency, thus better heat dissipation.<br> More corrosive-resistant: ceramic deals with moisture and air pollution better than aluminum<br><br> <b>About SANSI</b><br> SANSI was founded in 1993 in Shanghai, the idea of a retired director of Research Institute. He is dedicated to the High Technology of LED applications. Now SANSI has been a Global Leader in LED lighting and displays with over 400 R&D engineers, 2000 employees, and three advanced factories. Highest resolution screen in New York Square and in Verizon Center, Washington, D.C. made by SANSI.<br>