Abstract: An illuminating module is capable of compensating current. The illuminating module can tune the light with a light modulating circuit. The illuminating module includes an illuminating unit and a compensating circuit. The illuminating unit includes a power source, a load impedance, and a level unit. The level unit has a level potential which changes with the light modulating circuit. The compensating circuit includes a first resistor, a first switch, and a judging unit. The first resistor is coupled to the power source. The first switch is coupled to the first resistor and the illuminating unit. The judging unit is coupled to the level unit and the first switch. When the level potential is less than a predetermined potential, the judging unit makes the first switch to be at the conducting state to parallel connect the first resistor and the load impedance.

Abstract: An illuminating module is capable of compensating current. The illuminating module can tune the light with a light modulating circuit. The illuminating module includes an illuminating unit and a compensating circuit. The illuminating unit includes a power source, a load impedance, and a level unit. The level unit has a level potential which changes with the light modulating circuit. The compensating circuit includes a first resistor, a first switch, and a judging unit. The first resistor is coupled to the power source. The first switch is coupled to the first resistor and the illuminating unit. The judging unit is coupled to the level unit and the first switch. When the level potential is less than a predetermined potential, the judging unit makes the first switch to be at the conducting state to parallel connect the first resistor and the load impedance.