PAR is lamp designation short for Parabolic aluminized reflector lamp. A PAR lamp contains an integrated lens, reflector and filament making the lamp totally self-contained. The lenses on the these lamps are available with different style focal patterns. The lamps mount in a Stage Lighting fixture shaped like a can, hence the name PAR-CAN. The new generations of PAR fixtures utilize a Parabolic aluminized reflector with and integrated lamp socket that accepts tungsten halogen lamps. The lens are interchangeable allowing one fixture to accept multiple focal pattern lens. PAR fixtures are generally used as concentrated flood lights for washes and effects.