Lamp device and luminaire

摘要

According to one embodiment, a projection (34) projects in the rear side center portion of a housing (20). A light-emitting module (21) is arranged in the housing (20). A pair of power-supply sections (64) configured to supply electric power to the light-emitting module (21) is arranged around a light-emitting section (51) in the housing (20). An information circuit (25) configured to output information to the outside is arranged in a position around the light-emitting section (51) and different from the positions of the pair of power-supply sections (64) in the housing. A plurality of pins (38) are provided at intervals along the rear side peripheral portion of the housing (20) around the projection. Connecting means (76) connects the power-supply sections (64) and the pins located near the power-supply sections (64) and connects the information circuit (25) and the pin (38) located near the information circuit (25).