liva 12W LED Outdoor Exterior Wall Step UP/Down Light Fixture Lamp Black Finish (Warm White) Product description Description: This light made of high metal materials, safe and long lifespan. And save power more than 90% by ordinary bulbs. Solid state, shockproof, instant start, no flashing, no mercury or other hazardous materials. Accord with RoHs, working environment -20¡æ-40¡æ, suitable for unusual climate. Perfect for outdoor lighting. Installation: This fixture does need to be hard wired. Professional installation is recommended. Steps to install: 1. Use a screwdriver to screw out the bolts which connected the mounting base and main fixture. 2. Connect the power cords of the wall lamp to the 110V or 220V circuits (no distinction between the live line and zero line, one for live line and the other for zero line. If the wires were pretty long, please roll into a circle and place in a vacant position in lamp-chimney).