In the lighting industry, the acronym "PAR" stands for "Parabolic Aluminized Reflector." PAR bulbs use a parabolic mirror reflector to direction light into a specific beam angle that is unfocused around the edges. The PAR36 bulbs have beam angles that vary from very narrow spotlight to very wide flood lights. This type of bulb is primarily used in landscape lighting, such as outdoor flood lights, because of this, the selection of PAR36s are suitable for enclosed or sealed fixtures.
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