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Question 1

I'm replacing a bulb and see a lot of letters and numbers on the base. What do these light bulb base codes like E26, GU10, or G13 mean?

Accepted Answer

Light bulb base codes indicate the type of connector and the size of the bulb's base, ensuring it fits correctly into your fixture. The “E” denotes a standard screw-in Edison base, like the common E26. At the same time, “GU” usually signifies a bi-pin connector often found in track lighting and spotlights, and “G” is usually the most popular of the common bi-pin base types. Understanding these codes prevents buying the wrong bulb and ensures safe, reliable lighting.

Question 2

I'm looking for a tubular bulb for my fixture, and I see "T8," "T5," and "T12" listed. What do these "T" numbers mean, and how do they differ?

Accepted Answer

The "T" in these codes indicates a tubular shape, often used for fluorescent or LED tubes, and the number represents the tube diameter in eighths of an inch; thus, a T8 bulb is 1 inch in diameter, while a T5 bulb is 5/8 of an inch, and a T12 is 12/8 of an inch (or 1.5 inches), with the smaller diameter often correlating to newer, more energy-efficient models. Choose the correct number that matches the socket in your fixture.

Question 3

I'm looking to brighten up my kitchen island. What are some popular shape options, and what are they good for?

Accepted Answer

Globe bulbs offer a wide, even light distribution for kitchen islands, perfect for general illumination. In contrast, reflector bulbs can direct light downwards, which is ideal for highlighting specific areas like countertops. Consider the overall aesthetic of your space when making your choice.

Question 4

I'm looking for an outdoor security light for my garage. What should I consider?

Accepted Answer

Check out HID bulbs for high-intensity, far-reaching light or a good LED option for outdoor security lighting. Both can come in a variety of wattages and color temperatures. Consider using an accessory like a motion sensor for added security and energy savings.

Question 5

What's the difference between a medium (E26) and candelabra (E12) screw base, and which one do I need?

Accepted Answer

Medium (E26) base bulbs are the most common size for household lamps and fixtures, while candelabra (E12) bases are smaller and typically used in chandeliers, decorative fixtures, and nightlights. To choose the right one, look at the base of your old bulb or the fixture socket – if it's larger and standard-sized, you need an E26, while smaller ones are E12.

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