A lamp assembly that may be used as a fog lamp or headlamp includes a mounting bracket, a reflector, and an adjuster. The reflector is pivotably mounted to the mounting bracket and the adjuster is secured to the reflector. The adjuster is also secured to the mounting bracket such that rotation of an aiming screw forming part of the adjuster causes pivoting of the reflector and aiming of the lamp. The bracket and adjuster are provided in pre-assembled fashion such that the lamp may be easily attached thereto.