Lamp base allowing for electrical contact in various rotational positions

A screw-in type base for a lighting device being arranged to be mounted in a socket comprising a socket bottom conductor, the base comprising:

• a threaded tubular enclosure extending along an axial direction between a first end portion and a second end portion of the threaded tubular enclosure;
• a base bottom conductor arranged to be in electrically conductive contact with a light source of the lighting device, and arranged to make electrically conductive, biased contact with the socket bottom conductor when the lighting device is mounted in the socket, and
• an insulator electrically insulating the threaded tubular enclosure and the base bottom conductor from each other,
• wherein the base bottom conductor comprises a compliant thin-walled member on at least a surface facing the socket bottom conductor arranged such that the base bottom conductor is, relative to the threaded tubular enclosure, movable in the axial direction and the compliant thin-walled member portion of the base bottom conductor is compliant in response to engagement with the socket bottom conductor when the lighting device is mounted in the socket and
• wherein the compliant thin-walled member is overmolded by the insulator.