LED color temperature adjusting device and lamp

The embodiment of the utility model discloses an LED color temperature adjusting device and a lamp, the adjusting device comprises a first control module, a second control module, a first LED driving module and a first adjusting switch comprising a plurality of gears, and each gear corresponds to different color temperatures; the first adjusting switch is used for receiving a gear closing operation of a user and outputting a gear signal of a target gear corresponding to the gear closing operation to the first control module; the first control module is used for receiving a gear signal and outputting a first control signal to the first LED driving module and a color temperature adjusting signal to the second control module; the first LED driving module is used for receiving the first control signal and outputting a first driving signal to the first LED; the second control module is used for receiving the color temperature adjusting signal and outputting a target color temperature signal to the first LED; the f