Patent ID: 8142057

Claim:
A downlight assembly, comprising: a downlight can having a tubular can wall; a unitary die-cast cap mounted inside the downlight can and having a base section including an interior base-surface, an exterior base-surface configured to form an exterior top-surface of the downlight can, the exterior base-surface being an opposite surface of the interior base-surface, and an exterior wall-surface for direct contact attachment to an interior wall-surface of the tubular can wall, a plurality of heat-sink fins extending from the interior base-surface and forming a substantially cylindrical exterior heat-sink wall touching or in close proximity to the interior wall-surface of the tubular can wall, the plurality of heat-sink fins including tall fins and short fins, the tall fins having a greater height than the short fins, the height being measured as the distance extending perpendicularly away from the interior base-surface towards an interior space, the tall fins including a first set of tall fins and a second set of tall fins, the short fins including a first set of short fins and a second set of short fins, the first set of tall fins being separated from the second set of tall fins by the first set of short fins and the second set of short fins, the first set of short fins being separated from the second set of short fins by the first set of tall fins and the second set of tall fins, and an interior plate surrounded by the plurality of heat-sink fins; a plurality of spring retainers mounted to the interior plate of the die-cast cap; a LED array mounted on the interior plate of the die-cast cap in the interior space; a reflector and lens assembly mounted to the interior plate of the die-cast cap; and a finishing trim mounted to the spring retainers via a plurality of coil springs.