A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen and LED lamps. MR lamps were originally designed for use in slide projectors, but see use in residential lighting and retail lighting as well.
A multifaceted reflector (often abbreviated MR) light bulb is a reflector housing format for halogen and LED lamps. MR lamps were originally designed for use in slide projectors, but see use in residential lighting and retail lighting as well.
Source: Wikipedia "Multifaceted reflector" · CC BY-SA 4.0
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