Lamps are usually inserted in lampholder sockets which provide electrical connections to the lamp and support it in the lighting fixture.
CPU socket | Socket 370 | Socket M | Socket 478 | Secure Socket Tunneling Protocol | Lightbulb Sun | tube socket | Socket P | Socket G34 | Socket FM1 | Socket AM2 | Socket 604 | Socket 479 | Socket 3 | Socket 2 |