Patent ID: 7762690

Claim:
An LED lamp comprising: a heat sink comprising a base and a plurality of fins extending from the base; a plurality of LED modules each comprising a substrate plate thermally attached to the base of the heat sink and a plurality of LEDs mounted on the substrate plate; a housing comprising a frame surrounding the base of the heat sink, and cooperating with the heat sink to define a first cavity between the frame and the base of the heat sink; a first waterproof gasket being received in the first cavity and surrounding the base of the heat sink; and a hood covering over the LEDs of the LED modules and contacting the frame of the housing; wherein the base of the heat sink has a first portion adjacent to the fins and a second portion remote from the fins and having the LED modules attached thereon, the first portion and the second portion cooperatively define a recessed corner therebetween, the first waterproof gasket being located at the corner; and wherein the frame of the housing comprises a first portion contacting the first portion of the base, and a second portion contacting the hood, the second portion of the frame comprising a protrusion extending to the base and contacting the base at a side of the corner.