Patent ID: 8371719

Claim:
An illumination apparatus comprising: a base made of material with heat conducting conductibility, the base having a first surface and an opposite second surface, the second surface being configured for mounting a light source thereon; a heat sink group placed on the first surface of the base, the heat sink group comprising three types of heat sinks arranged in a plurality of lines extending along a lengthwise direction of the base, and two outer lines of the heat sink group each consisting of a plurality of first heat sinks and a plurality of second heat sinks evenly spaced apart from the first heat sinks and alternating with the first heat sinks, and the two outer lines are symmetrical relative to a longitudinal median of the base, a middle line of the heat sink group being occupied by a plurality of third heat sinks spaced apart from each other, and each of the third heat sinks being located between two neighboring first heat sinks at one side thereof and two neighboring second heat sinks at the other side thereof; and at least one fastening arm placed on the first surface of the base and adjacent to the heat sink group, the at least one fastening arm being configured for fixing the illumination apparatus on a supporter.