Baklite insulating base: The vintage E27 lamp socket is made of baklite plastic, which is flame retardant, heat resistant (up to 180 degrees) and corrosion resistant. Can withstand 250V rated voltage and 4A rated current. . Baklite socket E27: The E27 black solid retro baklite lamp holder is suitable for all E27 threaded bulbs such as LED, incandescent, halogen and energy saving lamps (maximum holder 60W). Make your home, office and garden DIY projects safer and more reliable. . Easy to use: The vintage E27 bulb adapter is equipped with a plastic cable tie, connect the cable correctly to the plus/minus pole then assemble all the parts. There is no buckle in the lamp holder, which is convenient for cord adjustment. . Practical retro lamp holder: The solid black lamp holder perfectly fits bulbs of different shapes and colors and easily matches any style, better than brass, rose gold and white bulbs. Wire design, installation is very easy and quick. . Retro fashion: The package contains 6 E27 baklite sockets, which are enough to cover your bulb insertion and replacement needs. Retro black can instantly add retro charm and elegance to the home. It is suitable for retro decoration of home, restaurant, bar, etc. .