| 摘要 |
The present invention relates to a lighting device, and more particularly to a lighting device having a function to control color temperature. The lighting device having a function to control color temperature of the present invention may be configured to comprise: a light emission unit which includes a first light source emitting light having a first spectrum, and a second light source emitting light having a second spectrum; a power unit which supplies power to drive the light emission unit; first and second switches which are connected to the first and second light sources, respectively; a switch drive unit which provides a first control signal controlling the first switch and a second control signal having the first control signal inverted to control the second switch; and a control unit which controls the switch drive unit according to a light emission ratio of the first light source to the second light source, set by an external control signal. |
