BG British General festoon lampholder with bayonet fitting p/n 482H-01.
No tool needed
Hard to get hold of part.
This lampholder can be positioned anywhere along the festoon cable. Simply unscrew the cap from the seating, and press the contact spikes onto the flat festoon cable, then ensure the cap is tightly fastened to the lampholder.
Recommended maximum lamp wattage for exposed outdoor use is 40 W.
Recommended maximum lamp wattage for indoor use is 100W.
Maximum voltage is 240V.
Maximum current is 2 AMP.