In vehicle headlamps of the prior art, a low-beam light distribution pattern and a high-beam distribution pattern could not be obtained in a direct illumination lens-type lamp unit. The present invention is provided with a semiconductor light source, a lens, a light control member, and a drive member. The lens is composed of a main lens section and an auxiliary lens section. The drive member positions the light control member in a first position and a second position in a moveable and switchable manner. Consequently, the present invention enables a low-beam light distribution pattern and a high-beam light distribution pattern to be obtained in a direct illumination lens-type lamp unit.