According to an aspect there is provided a base for an electric lamp. The base includes a tubular enclosure extending along an axial direction between a first and a second end portion of the enclosure, an insulator attached to the first end portion of the enclosure. The insulator has an inner portion facing towards an inner space of the enclosure, an outer portion facing away from said inner space and at least one channel for receiving a contact pin, the channel extending from the outer portion, through the insulator and leading into said inner space. The base also includes a housing for accommodating electrical circuitry for operating the electric lamp. The housing is attached to the inner portion of the insulator such that a rotation of the housing relative to the insulator about the axial direction is prevented, and a rotation of the housing relative to the enclosure is prevented.