Patent ID: 8692444

Claim:
A solid state lighting apparatus configured to provide for efficient dissipation of heat_comprising: a) a thermally conductive housing canister having an interior cavity and incorporating within said cavity electrical power supply for providing electric power to the lighting apparatus; b) a cover configured to prevent debris from entering the housing canister and further configured to provide a passage between the cover and the housing canister sufficient to allow air to flow from the interior cavity to the exterior environment; c) a thermally conductive heat sink thermally associated with the housing canister and having_a central air channel extending the length of the heat sink to the housing canister and a plurality of cooling fins extending into the central air channel, wherein air flows from the air channel into the housing canister; d) a plurality of solid state light sources powered by said electrical circuitry and thermally associated with the heat sink for conductively transferring heat from said plurality of solid state light sources to the heat sink; e) a substantially transparent lens body enclosing said solid state light sources and heat sink, the lens body removably fixed to the housing and having an air gap and configured to be coupled to the central air gap of the heat sink, whereby debris is prevented from entering the lens body.