| 摘要 |
Disclosed is a light-emitting device. The light-emitting device comprises first to fourth groups of light-emitting chips, which are sequentially driven using AC power and are serially connected to each other, wherein the respective first to fourth groups of light-emitting chips comprise a combination wherein at least one of two or more kinds of the light-emitting chips, having different light-emitting areas, is electrically connected. |
