| 摘要 |
A heat sink (C), including a heat dissipation base (7) and a heat dissipation tooth (1). The heat dissipation base (7) is a columnar body. The heat dissipation tooth (1) is provided by radially extending along the outer wall surrounding a first surface of the heat dissipation base (7). The edge of the heat dissipation tooth (1) is a closed structure and the heat dissipation tooth (1) is provided thereon with a plurality of heat dissipation holes (101, 102). A lighting device, including the heat sink (C). The heat sink (C) is small in volume and does not shield the light rays emitted by the lighting device backwardly, which is simple in structure, convenient and safe in use with good heat dissipation effects. |
