This 48" LED light tube adopt 288 pieces SMD-3528 LEDs, it's a replacement for standard fluorescent light tubes, the light is very bright and can be used as indoor and outdoor lighting and decorating. To install, simply by pass the existing ballast and connect the hot wire to one end and the neutral wire to the other end. The power consumption of this white LED lights is 18W, Save 60% power consumption comparing with the fluorescent light. They are really power saving and eco-friendly bulbs. The lifespan is often very long and they are easy to install. A must-have for your office or home.