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The PAR64 (or Parabolic Aluminized Reflector) is one of the most common and most useful lighting fixtures used today, for stage, studio and entertainment lighting applications. The fixture is lightweight and simple in design and construction. It is also economical to manufacture and easy to maintain. The fixture uses one of several different incandescent PAR lamps to provide an efficient spotlighting package. 240 volt versions exist, making the PAR64 a truly universal luminaire available and used throughout the world.

The PAR lamp is simply a sealed beam type of lamp, similar to an automotive headlight. This efficient lighting package has the base, filament, reflector and lens all optically aligned and sealed into a single lamp. PAR lamps are manufactured in several different diameters  wattages and beam spreads for a wide variety of applications. Common sizes include the PAR36, 38, 46, 56, and 64.

For entertainment lighting applications PAR64 fixtures are particularly suited to area lighting and other applications where 'flare' from the lamp is not of great concern. As they provide a beam with a soft edge they should be used for appropriate lighting applications only. The oval beam can often be used to advantage, providing a wider beam spread in one direction or the other. PAR64's are also very effective when used with saturated color filters as this often tends to help mask or reduce the flare. They make effective acting area lights, wash lights, back lights and down lights for a variety of different entertainment lighting applications.

Because of the high degree of flare from these fixtures, the PAR64 is not commonly used for lighting applications where a high degree of control is required. They are not appropriate where  very isolated lighting is needed or in close proximity to scenery or drapery. They are however particularly effective for applications where a small, inexpensive, lightweight and efficient luminaire is required and where a soft edge and wide flare is not of major concern.

For architectural lighting applications the PAR64 is particularly well suited to the lighting of three dimensional objects and sculptures. PAR64's can also be used to provide 'pools' of light on a floor or 'shafts' of downlight against a wall.