Abstract: A recessed luminaire (1), has a dome-shaped reflector (6), a light source (8) arranged therein, a mounting ring (9) which engages around the reflector (6) near to its edge. A holder ring (41) for additional components, such as a glass plate or the like, to be attached to the mounting ring (9), is also provided, the holder ring (41) having connection means for fastening it on the mounting ring (9). At least two plug-in elements (45) having plug-in pins (46a) and radially developing plug-in recesses (46a) are provided on the mounting ring (9), for plugging-in of the plug-in pins (46b).

Abstract: A recessable luminaire (1) having a dome-shaped reflector (5), a lead-through hole (18) in a reflector side wall (14) and a light source carrier (6) carrying a light source (7), the light source carrier (6) being located at least partially outside the reflector (5) and the lead-through hole (18) being passed through by the light source carrier (6) or the light source (7) in such a manner that at least the light source (7) is located within the reflector (5). For simplification of the luminaire, the light source carrier (6) is attached to the reflector (5) by means of direct connection with the outer side of the reflector (5).

Abstract: A recessable luminaire (1), having a dome-shaped reflector and a light source located at least partially outside the reflector (6) such that a light source (8) carried by the carrier is located within the reflector (6). A mounting ring (9) is arranged to engage the reflector (6) around and near its edge region. The mounting ring 9 has connection means for attaching the light source carrier (7). The connection means is formed by a plug-in pin (27b) on the mounting ring (9) or on the light source carrier (7) and at least one corresponding plug-in fitting (27a) on the light source carrier (7) or on the mounting ring (9).

Abstract: A contact rail with two conductors that are arranged on opposite sides of a transparent isolated support member and can be tapped from the outside. The support member is preferably made of glass material.

Abstract: An adapter for a contact rail having electrical conductors and grooves provided on opposite surfaces thereof including a housing including, two lateral legs forming a recess therebetween and moveable away from each other between an open and a closed position. Electrical contacts are provided in the housing at the opposite sides of the recess and positioned for engaging with electrical conductors of the contact rail with the contact rail placed between the legs in the closed positon. At least one of the lateral legs can be moved along a straight line into a closed position such that holding elements provided on the legs engage grooves on the contact rail and the electrical contacts engage the electrical conductors of the contact rail.