Lighting system and signal converting device therefor

The lighting controller for a plurality of lighting apparatuses, comprising:

• a sensor unit configured to generate an environment information by detecting a change of surrounding environment;
• a plurality of drivers configured to drive the plurality of lighting apparatuses;
• and
• a controller configured to control each of the plurality of drivers,
• wherein the controller comprises a DALI master controller configured to transmit and receive a first signal to and from an external management server according to a DALI communication protocol, and a signal converter configured to transmit and receive a second signal to and from the plurality of drivers according to a wireless communication protocol and inter-convert the first signal and the second signal.

The lighting apparatus comprising:

• a light source unit comprising a plurality of first LEDs configured to emit a light having a first color temperature and a plurality of second LEDs configured to emit a light having a second color temperature;
• a driver configured to drive the plurality of first LEDs and the plurality of second LEDs;
• a sensor unit configured to collect an environment information of a space where the light source unit emits light;
• and
• a controller configured to adjust a color temperature of a light emitted from the light source unit by controlling the driver based on the environment information.