Light Bulb Identifier

Established 1989 – Special Orders and Shipping – Family and Woman Owned

Bulb Size Reference

Sunlan Lighting Inc. wants you to know that lamp size is determined by the maximum diameter expressed in eighths of an inch (1/8″). For example, an A19 lamp is 19-eighths of an inch or 2 3/8″ in diameter. To determine a lamp size, use the full-size scale shown below (calibrated in eighths). Place one edge of the lamp to be identified on the top edge of the scale and measure the approximate diameter by reading the scale at the opposite edge of the lamp. Sizes of the more popular lamp types are indicated on the scale.

Lamp Size (Shown in Actual Size)

Lamp size is determined by the maximum diameter expressed in eighths of an inch (1/8’). For example, an A19 lamp is 19-eighths of an inch or 2 3/8’ in diameter. To determine a lamp size, use the full-size scale shown below (calibrated in eighths). Place one edge of the lamp to be identified on the top edge of the scale and measure the approximate diameter by reading the scale at the opposite edge of the lamp. Sizes of the more popular lamp types are indicated on the scale.

Kelvin Color Temperature

Kelvin Color Temperature

LED lamps are available to replace fluorescent tubes/lamps in the same fixture.

The size and shape of a bulb are designated by a letter code followed by a number. The letter indicates the shape of the bulb, and the number indicates the diameter in eighths of an inch.

Call Us Today!

To learn more about the bulb identifiers we supply, call our store today at (503) 281-0453 in Portland, OR.

WHAT OUR CUSTOMERS ARE SAYING

“Sunlan is a one-stop shop for any and all lighting needs. The staff are friendly, inviting, and willing to educate anyone willing to listen about all things light and light bulb related.”

Jake M.

“WOW!

This is such an interesting store with an incredible selection of bulbs! It is as much a piece of are as it is functional. Kay has vast knowledge of bulbs and their history! This is a must-see for anyone who likes cool lights.”

K. T.

“Great experience. I was worried about replacing some large globe lightbulbs, but Sunlan had plenty of options in stock. And for about half the price that I’d seen online. Also got some great lighting 101 education from her. I will be back soon!”

Alison Grover

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Contact Information

Phone: (503) 281-0453
Email: kay@sunlanlighting.com
Address: 3901 N Mississippi Portland, OR 97227

Business Hours

Monday - Friday: 8:00 am - 5:30 pm
Saturday: 10:00 am - 5:00 pm

Holiday Closed:
New Years Day - Thanksgiving - Christmas Day

Short Hour Holidays 10:00 am - 4:00 pm
Memorial Day - 4th of July - Labor Day

Since 1989