Patent ID: 8632207

Claim:
A portable lighting apparatus, comprising: a solid housing; a substantially rigid and thermally-conducting metallic circuit board having two opposing sides and having an electrically-insulating layer on at least one side thereof disposed within said housing and providing mechanical and electrical support for a plurality of LED light sources, wherein the metallic circuit board includes a metallic substrate configured to dissipate heat; a plurality of LED light sources being electrically and mechanically coupled to said circuit board on the side of said circuit board having said electrically-insulating layer, said LED light sources being further thermally coupled to said circuit board so as to conduct heat from said LED light sources to said circuit board during operation; an optically-permissive compound capable of transmitting at least a substantial portion of light output of said LED light sources, the compound substantially filling a space between an interior surface of said solid housing and said circuit board and LED light sources so as to provide mechanical contact with both sides of said circuit board and said LED light sources and said housing so as to conduct heat from said circuit board to said compound during operation; a plurality of spacers associated with the circuit board to support the circuit board within an interior portion of the housing, wherein the spacers are configured to located the circuit board within the housing and absorb mechanical shock introduced into the portable lighting apparatus; and a power supply circuit for providing electrical power from a power source to a portion of said circuit board so as to energize said LED light sources.