Light Bulbs /

Reflector Light Bulbs

An R-shaped light bulb is often used in track and recessed light fixtures. The “R” stands for reflector, which is inside the glass of the light bulb and is used to maximize light directed out of the lamp. The number, such as “20”, is its diameter in eighths of an inch (20/8in or 2.5in).
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Light Bulbs /

Reflector Light Bulbs

An R-shaped light bulb is often used in track and recessed light fixtures. The “R” stands for reflector, which is inside the glass of the light bulb and is used to maximize light directed out of the lamp. The number, such as “20”, is its diameter in eighths of an inch (20/8in or 2.5in).
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