Silver plated metal socket with switch. Lampholder for lampshade. 7 cm height, 3.5 cm diameter, E27 base. Sold without bulb and without cable.
This lamp holder has a safety device that prevents it from opening when you change the bulb. When the two parts of the socket are tight, it goes into 'safety mode'. To unlock it, push the small pin towards the center of the socket with a flat screwdriver. This small pin is located next to the two metal connectors inside the socket, locked in lateral teeth.