1156 or SCC BA15S Bulb holder base male socket with 2 wires.

Bulb holder for single contact BA15s on mounting plate.

Bulb holder plug - for SCC/BA15S type single contact bulb holders.

Rear Lamp Bulb Holder Lucas Type Single Contact for Triumph Reliant 518042 -2pcs

2x P21w Ba15s 1156 Led Reversing Light Bulbs 6000K For Mercedes W639 2004-2024

L488 Bulb holder BA15S single contact for vintage and classic cars.

Vintage and classic car single contact BA15s bulb holder

For BMW 2 Series F46 2015-23 P21W LED Xenon White 6000K Reverse Light Bulbs Pair