Safety Tips: Must be installed by a professional electrician. When installing, cleaning the bulb and replacing the light bulb, the power must be turned off. Light source for E27 screw bases, with optional incandescent bulbs, LED bulbs or energy-saving bulbs (excluding bulbs) Indoor and outdoor are suitable, decorated corridor entrance courtyard villa garage and so on. Advantages: Safe and easy to install, designed for cooling, saving more than 80% of energy and the environment. High-quality die-cast aluminum lamp body and glass lampshade, waterproof IP44, anti-rust, good light transmission, long service life.