"PAR" stands for parabolic aluminized reflector and is a term applied to spotlights and floodlights commonly used by homeowners and small businesses.
PAR fixtures are typically mounted on a movable neck with which you can aim the light where you need it. They are one of the most popular home "security" lights.
Despite the name differences, floodlights and spotlights are not significantly different. A spotlight casts its light nearly as wide and far as a floodlight, even though the name might imply greater light control.
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