The Wall-Mounted Light Socket is are mechanical devices that support lamps and connect them to electrical circuits . They hold light bulbs and make electrical contact to provide a bulb with power. Lamp holders are used with most light sources for incandescent, fluorescent, and compact fluorescent lamps (CFL). Specification of Wall-Mounted Light Socket : E27 Light bulb lamp socket holder Simple design and installation Material: plastic, metal Maximum current: 4A Colour: white Package includes: 1 x Bulb Holder, Wall Holder