Lamp cap with three locking flaps in common plane, protruding from cap outer surface for securing lamp cap in lamp socket

摘要

Lamp cap includes three locking flaps (352c,353c) in common plane, protruding from cap cylindrical, or annular part (35) for securing lamp cap in socket. Lamp cap contains key flap(s) (355c). Key flap protrudes from cap and is offset to locking flaps so that, together with locking flap, it forms unambiguous fitting position of lamp cap in socket. Preferably at least one key flap is located between two locking flaps. Independent claims are included for lamp with invented cap and illuminating system with switch lamp.