Lamp holder (13), comprising: - a socket block (14), - a socket receptacle (34) for a lamp base (21) on the upper side of the socket block (14), - connection contacts (18) for external power supply connection conductors on the underside of the socket block (14), - a retaining clip (39) by means of which the lamp base (21) can be anchored in the socket receptacle (34), - two receiving slots for the lamp base (21) between the spring legs (38) of the retaining clip (39), each having a free spring leg end and a spring leg end attached to a retaining leg and sitting in the socket receptacle (34), wherein - the retaining leg is arranged on the upper side of the socket block (14) and - the free ends of the spring legs (38) are seated in the socket receptacle (34) pointing towards the underside of the socket block (14),and wherein - the retaining clip (39) is part of a fastening ring (15) fixed to the socket stone (14) and surrounding the base receptacle (34), and - the socket stone (14) forms on its upper side a lamp receptacle surrounded by a wall, the base of which forms the base receptacle (34).