Learn Anout Lighting / Light Bulb Size Reference - Isabelle's Lighting

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	Learn About Lighting 1
	Light Bulb Size Reference How to use the chart: The code number of a bulb consists of a letter or letters followed by a number. The letter indicates the shape of the bulb and the number relates to the diameter of the bulb in eighths of an inch. The most commonly used household bulb is the A-19. The bulb is "A" type and the diameter would be 2-3/8" A 120BR40 is a 120 watt reflector 5" in diameter. Refer to Light Bulb Shapes and Sizes for more information.
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	1 Information on this page was obtained from the Bulbrite Product Catalog © 2006. Isabelle's Lighting is an authorized distributor of the complete line of Bulbrite products.