A lamp cap (100) comprising a base part (101) defining a cavity (102) for receiving a socket (203) of a lamp, the base part (101) having a lateral wall arrangement (103) limiting the cavity (102) and a ring shaped bottom side (104) surrounding an aperture (105); an electrical insulating interface (106) fixed to the bottom side of the base part (104) in such a manner that it covers the aperture (105), a space (102) being defined between the electrical insulating interface (106) and the lateral wall arrangement (103); and an electrical connector assembly (120) extending through the electrical insulating interface (106) to provide an electrical connection between the lamp socket (203) and an electrical power supply. A method of and apparatus for manufacturing a lamp cap is also described.