Warning lamp

A warning lamp has a reflector (44) mounted on a rotary platform (20) which is journalled on a hollow pillar (18), and a light source (42) mounted on the pillar (18) and having a centre contact (48) engaging with a connector (52) within said pillar (18). The connector comprises a spring (52) having a U-shaped portion (50) with two parallel limbs, and a pair of support arms (54), each extending from one of the limbs of the U-shaped portion (50) and having an end (62) secured to the pillar (18) so as to support the U-shaped portion (50) in a position in which its limbs grip said centre contact (48) of the light source (42).