ETi 7 in. Spin Light Integrated LED Flush Mount with 3 Adjustable Light Heads is designed to screw into most existing plastic and porcelain medium base socket lamp holders without any wiring required; just like a light bulb. (Hardwire option with adaptor included). Screw the threaded base on the fixture body clockwise into the keyless lamp holder then, using your hands, adjust the 3 heads to direct the light where desired. Each light head provides crystal-clear illumination, energy-efficient and long-lasting LED technology for maintenance free service with no bulbs required. Great for workshop, basement, garage, outbuilding, tool shed or storage room.