Head lamp system

PURPOSE: A head lamp system is provided to high efficiently recognize existence of an obstacle by a driver by flickering beam with respect to an irradiation spot corresponding to a location of an obstacle. CONSTITUTION: A head lamp has a headlight and a spot light unit. The spot light unit includes a plurality of optical modules. The plurality of optical modules have a different irradiation spot irradiated in front of a vehicle. An optical module having an irradiation region corresponding to a location of an obstacle of the front of the vehicle is flickered. A period of flicker varies with a speed of a vehicle.