To provide a desired lighting stage effect by shielding the light transmitted by a reflector by an incandescent lamp with the reflector mounted on a socket within a casing and a non-translucent shade member mounted on the circumferential surface of the casing.

An incandescent lamp 3 with a reflector is mounted on a socket arranged within a casing 1, in such a manner as to be attachable. Non- translucent shade members 41, 42 have openings for inserting the casing 1, and threaded grooves are formed on the inside surfaces of their mounting parts 411, 421. A thread part 11 is formed on the circumferential surface of the casing 1, and the shade members 41, 42 are arranged on the circumferential surface of the casing 1 in the rear of the incandescent lamp 3. The shade members 41, 42 are made of ceramics, which efficiently release heat generated by the incandescent lamp 3. Further, the shade members 41, 42 can be colored or patterned according to the needs so as to be fit to a lighting space, and cleaning or the like is also facilitated because they are easily removable.