Patent ID: 7880401

Claim:
A lighting controlling device of vehicle lighting equipment, comprising: switching regulators for supplying a current to a plurality of semiconductor light sources respectively; a plurality of current driving means, comprising switching means connected to the semiconductor light sources for controlling ON/OFF of the semiconductor light sources, for current-driving the semiconductor light sources at a maximum current value or a current value smaller than the maximum current value in response to respective operating states of the switching means; current setting means for setting a maximum current value applied in current-driving the current driving means or a maximum current value of currents fed from the switching regulators to the semiconductor light sources separately in plural stages in response to respective assignments; and a controlling portion for controlling the current driving means and the current setting means in response to a plurality of lighting modes based on communication information from an external device; wherein the controlling portion assigns the maximum current value corresponding to each lighting mode to the current setting means for every lighting mode, and assigns ON/OFF periods of the switching means to the current driving means for every lighting mode.