A light module system includes a receptacle, which may be mounted on a support surface, such as a heat sink, and further includes a cover and an LED assembly rotatably coupled to the cover. The LED assembly seats within the receptacle which causes terminals of the LED assembly to align with contacts on the receptacle. One of the cover and the receptacle has a plurality of ramps and the other has a plurality of shoulders. The cover can be rotated relative to the receptacle to cause the shoulders to slide relative to the ramps so as to direct the LED assembly into the receptacle. When the LED assembly is attached to the receptacle, the terminals on the LED assembly mate with the contacts on the receptacle.