The present invention provides a lamp unit for low beam, a lamp unit for high beam, and a lamp unit for shoulder edge beam. The lamp units each are made of a semiconductor-type light source and a reflector that has reflection surfaces configured to illuminate the light from the semiconductor-type light source forward of a vehicle, as a predetermined light distribution pattern. As a result, the present invention is capable of fully utilizing the light from the semiconductor-type light source, making it possible to facilitate a light distribution design configured to form the light in a predetermined light distribution pattern.