It is a common bulb holder with an E12 thread specification. Easy to install, simply connect the wires correctly to the positive and negative poles and assemble all parts together. Install the socket and decorate your room according to your preferences. Features - Color: Black - Material: Plastic - Size: 1.50 x 1.50 x 4.20 cm / 0.59 x 0.59 x 1.65 inches - Light Base: E12 - These E12 light sockets are standard base sockets and fit most E12 light bulbs - Plug-in design, easy to install. A great lamp holder replacement for old or broken ones - Compatible with E12 base bulbs, suitable for decorative DIY pendant lighting projects - Easy to install. Applicable for standard light bulbs with E12 lamp base - When using the electrical connector, connect the cord and lamp directly, then secure it with a vise Packing List 10 x light sockets