Patent ID: 8104919

Claim:
An LED lamp, comprising: a heat sink; a plurality of LED modules attached to two opposite sides of the heat sink; and two envelopes located at the two opposite sides of the heat sink and covering the plurality of LED modules; wherein the heat sink comprises a prism-shaped heat absorption portion and a plurality of fins extending from a back surface of the heat absorption portion, the LED modules being attached to two opposite lateral side surfaces of the heat absorption portion, and the fins being located between the two opposite lateral side surfaces of the heat absorption portion; wherein the LED lamp further comprises a casing mounted on a front surface of the heat absorption portion of the heat sink; and wherein the casing comprises two horizontal plates, a rear plate perpendicularly connecting the two horizontal plates, and two lateral plates perpendicularly connecting both the two horizontal plates and the rear plate, and the rear plate of the casing being attached to the front surface of the heat absorption portion of the heat sink.