A recessed LED ceiling light fixture kit for installation to a ceiling panel or plaster frame in residential homes or commercial buildings is disclosed. The kit includes an LED engine with at least one LED facing downward, an LED driver, and an annular shaped, finned heat sink that receives the LED driver therein and the LED underneath. The fixture includes a tubular-shaped can having an open bottom and a top engaging the heat sink. Detachable can retainer springs or threaded fasteners engage the can at its circumference, wherein the springs mount the can to the ceiling panel, or alternatively, the fasteners attach the can to the plaster frame. A trim ring is snapped onto the can at its open bottom, and an electrical junction box sits on top of the heat sink.