Abstract: The present invention discloses a down lamp, comprising a housing and a wiring terminal (1) disposed in the housing, and the housing comprises a front shell (2) and a rear cap (3), wherein the rear cap (3) has an opening (4) at the location corresponding to the wiring terminal (1) and the opening (4) is provided with a terminal cap (5) that is matched with the opening and is in detachable connection with the rear cap (3), which is convenient in wiring.