Lamp unit and lighting fixture

摘要

According to one embodiment, a lamp unit (18) includes a light-emitting module (23), a lighting circuit (25), and a housing (21). The light-emitting module (23) includes a light emitting portion (52) having a semiconductor light-emitting element (52a). The lighting circuit (25) lights the semiconductor light-emitting element (52a). The housing (21) includes a case opening in the direction of irradiation of light, and a base (30) on a side of the case opposite from the direction of radiation of the light. The lighting circuit (25) is accommodated in the case (28), and the light-emitting module (23) is mounted on the base (30) at a position closer to the base (30) with respect to the position of the lighting circuit (25).