A lamp arrangement is provided having a lamp socket, a concave reflector body arranged on the lamp socket, an emitter arranged within the cavity of the reflector body and on the lamp socket, and preferably a filter disk, which covers an outlet opening of the reflector body for radiation. The reflector body is detachably connected with the lamp socket by a bayonet catch. Alternatively, the reflector body can be connected with the lamp socket by at least two gripping arms. The lamp arrangement is designed especially for use in the UV range.