Light source driving device with adjustable light

The utility model discloses a light source driving device with adjustable light, comprising a main power supply with an adjustable output voltage, a light dimmer and at least a driving device, wherein, the input end of the main power supply is electrically connected with an alternating current power supply to convert alternating current into direct current; the light dimmer is connected with the main power supply to output a brightness control signal to the main power supply so as to adjust the main power supply to output voltage; the input end of the driving device is electrically connected with the main power supply, the output end thereof is electrically connected with a light source, the driving device is connected with a voltage detecting unit which is used for detecting the voltage which is input into the driving device by the main power supply, the voltage or current which is outputted to the light source by the driving device is adjusted according to voltage parameters which are fed back by the voltag