Abstract: An LED light source is provided that is comprised of a heat sink assembly and at least one LED, where the heat sink assembly includes a hollow heat sink (e.g., a cylindrical heat sink) and an LED thermal pad that mechanically closes an opening in the heat sink via direct mechanical and thermal contact. The thermal pad or pads of the LED are in direct mechanical and thermal contact with an upper surface of the LED thermal pad.

Abstract: An LED light source is provided that is relatively easy to fabricate and achieves superior heat dissipation. The provided LED light is comprised of a base assembly that includes a hollow cylindrical member, a base member that includes an electrical light socket connector, and a plurality of optical assembly mounting arms; a heat sink assembly that includes a cylindrical heat sink configured to fit over the hollow cylindrical member of the base assembly and a disc-shaped LED thermal pad that mechanically closes an end portion of the cylindrical heat sink; an LED drive circuit disposed within the cylindrical member of the base assembly; at least one LED mounted such that a thermal pad of the at least one LED is in direct mechanical and thermal contact with an upper surface of the disc-shaped LED thermal pad; and an optical assembly coupled to the optical assembly mounting arms.