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2. Parabolic aluminized reflector - Wikipedia

   en.wikipedia.org/wiki/Parabolic_aluminized_reflector

   A parabolic aluminized reflector lamp (PAR lamp or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. It produces a highly directional beam.

3. Multifaceted reflector - Wikipedia

   en.wikipedia.org/wiki/Multifaceted_reflector

   A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen as well as some LED and fluorescent lamps. MR lamps were originally designed for use in slide projectors , but see use in residential lighting and retail lighting as well.

4. Stage lighting instrument - Wikipedia

   en.wikipedia.org/wiki/Stage_lighting_instrument

   It uses two reflectors. The primary reflector is a parabolic reflector and the secondary reflector is a spherical reflector. The parabolic reflector directs the light into nearly parallel beams, and the spherical reflector is placed in front of the lamp to reflect light from the lamp back to the parabolic reflector, which reduces spill.

5. How to Choose the Right Light Bulb for Every Fixture - AOL

   www.aol.com/choose-best-light-bulb-every...

   What Light Bulb Sizes Stand For. A for Standard Household/Arbitrary. C for Candle. R for Reflector. MR for Multifaceted Reflector or Quartz Reflector Lamp. PAR for Parabolic Aluminized Reflector ...

6. Reflector (photography) - Wikipedia

   en.wikipedia.org/wiki/Reflector_(photography)

   A traditional umbrella-style reflector, used to diffuse light from a photographic lamp to which it is normally attached. In photography and cinematography, a reflector is an improvised or specialised reflective surface used to redirect light towards a given subject or scene.

7. Halogen lamp - Wikipedia

   en.wikipedia.org/wiki/Halogen_lamp

   Halogen lamps made for 12 to 24 volt operation have good light outputs, and the very compact filaments are particularly beneficial for optical control (see picture). The ranges of multifaceted reflector "MR" lamps of 20–50 watts were originally conceived for the projection of 8 mm film, but are now widely used for display lighting and in the ...