A lamp adjustment assembly for a light fixture includes a socket platform having a base and hollow neck. A socket mounts to the base. The interior of the hollow neck includes at least three spaced-apart cam followers. A cam having spiral grooves includes a first portion that fits at least partially within the interior of the hollow neck. The cam followers mate with the grooves. An adjustment knob is coupled to a second portion of the cam and rotatably coupled to a socket housing that at least partially encloses the lamp adjustment assembly. Alignment wings extend from the base of the socket platform and are sized to fit within slots in the interior of the socket housing. The slots prevent the socket platform from rotating and limit the linear range of motion of the socket platform. A spring applies force to the base and the adjustment knob.