Patent ID: 8517575

Claim:
An illumination device, comprising: a main body supported by a support member; an upper cover portion covering an upper portion of the main body; and an LED light emitting part and a power supply unit, both of which are fixed to a lower side of the upper cover portion, the power supply unit being disposed between the support member and the LED light emitting part, wherein the upper cover portion includes a plurality of radiation fins provided on a top portion thereof and a plurality of grooves defined between adjacent radiation fins, the grooves being inclined downward toward the support member, and wherein a height of the radiation fins at a side where the LED light emitting part resides is greater than a height of the radiation fins at a side where the power supply unit exits; wherein a thickness of a section of the illumination device where the LED light emitting part exists is smaller than a thickness of a section of the illumination device where the power supply unit exists; and a power supply containing unit protruding downward from the main body to contain the power supply unit therein and a light emitting panel provided at a lower side of the main body, wherein the power supply containing unit has an outer surface controlling light distribution of the light coming from the light emitting panel.