Patent ID: 8492960

Claim:
A lamp comprising: a light source; a heat sink; and a lamp cover mounted on the heat sink; wherein the lamp cover comprises a connecting portion, the heat sink defines an annular engaging groove, and the connecting portion is engaged in the engaging groove to connect the lamp cover and the heat sink together; wherein the heat sink comprises a main body, a plurality of fins circumferentially surrounding the main body, and a plurality of clamping portions extending from top sides of the plurality of fins respectively, the light source being mounted on the main body, the plurality of fins being spaced from each other along a circumferential direction of the heat sink, the plurality of clamping portions being equidistantly spaced from each other along the circumferential direction of the heat sink and surrounding the connecting portion of the lamp cover, each of the plurality of clamping portions defining a recess, all the recesses communicating with each other to cooperatively define the annular engaging groove.