What is light bulb base code?

Look at your fixture to determine its base type. Medium – Standard base code: E26. Candelabra – Base code: E12. Intermediate – Base code: E17. Pin Type Bases – Base Codes GU5.3, GU10, and GU24.

How do I know what base my light bulb is?

To know the base of a light bulb, identify if it is a screw type that has threads around the base, or a pin type that has 2 points of contact on the base. After that, measure the diameter of the screw base, or the distance between the two pins, in millimeters.

What is the standard light bulb base?

The medium E26 base is the most common light bulb base. It is used in most incandescent, halogen, CFL, CCFL, and HID light bulbs. The mogul E39 base is found in larger sized light bulbs, such as high wattage HID.

What is light bulb shape code?

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 mosts commonly used household bulb is the A-19. The bulb is “A” type and the diameter would be 23/8″.

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Is E26 light bulb the same as A19?

An E26 screw-in bulb has a 26 millimeter diameter screw as its mounting method, but the lamp itself can be of a variety of shapes and sizes. The standards that govern the dimensions and design of A19 light bulbs also dictate that it must use an E26 screw base. In other words, all A19 light bulbs also have an E26 base.

What is a small base light bulb?

E26 is the size of most light bulbs used in the U.S. It’s referred to as having a “medium” or “standard” base. E12 is the smaller “candelabra” base. It’s used for nightlight bulbs, and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.

What are the 3 types of light bulbs?

There are three basic kinds of light bulbs on the market: incandescent, halogen, and CFL (compact fluorescent light).

Is E27 a standard bulb?

E26/E27 Medium – Edison 26-mm or 27-mm Diameter

Bulbs with these bases are the most popular of all screw base bulbs. They are commonly used for general lighting in standard light fixtures, such as ceiling lights, lamps, can lights, outdoor spotlight and flood light fixtures, and vanity lights.

Do all light bulbs have the same base?

There are tens of unique bases for light bulbs. The most familiar is the Edison screw base found on most incandescent bulbs and many halogen, compact fluorescent, HID and now LED bulbs. The common terms are medium, intermediate, candelabra and mogul.

What does A19 light bulb mean?

The term A19 is used to describe the overall shape and dimensions of a light bulb. It has been used since the era of incandescent light bulbs, and now CFL and LED light bulbs continue to use the same term. … An A19 bulb, therefore, has a diameter of 19 divided by 8 inches, or approximately 2.4 inches.

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What are the 4 types of light bulbs?

There are four popular types of lightbulbs: incandescent, compact fluorescent (CFL), halogen, and light-emitting diode (LED).

How do you read a light bulb code?

Numbers in each code refer to the bulb’s diameter in one-eighths of an inch.

  1. A15 bulb: 15/8 = 1-7/8″ diameter.
  2. A19 bulb: 19/8 = 2-3/8″ diameter.
  3. A21 bulb: 21/8 = 2-5/8″ diameter.
  4. A25 bulb: 25/8 = 3-1/8″ diameter.
  5. G11 bulb: 11/8 = 1-3/8″ diameter.
  6. G14 bulb: 14/8 = 1-3/4″ diameter.
  7. G16/G50: 16/8 = 2″ diameter.

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Does it matter what shape light bulb?

Sizes and shapes do matter – so be mindful before purchasing a new bulb. If you need more about light bulb bases explained, be sure to ask a store associate before purchasing a bulb.

Are A19 and st19 bulbs interchangeable?

That said, all A19 bulbs have E26 bases so all A19 bulbs are the same as E26 bulbs. What’s the difference between st19 and st64? st19 and st21 are the same lamp with a slightly different shape.

Can I use an E27 bulb in an E26 socket?

These two standards are interchangeable, meaning a US E26 will fit in a European E27 base, and E27 will fit in a E26 base. The only difference is the voltage (for light bulbs). In fact there is only 1 mm difference between the threads of E26 and E27, so they are virtually identical.

Is E26 a standard light bulb base?

In the United States, E26 is the most common size of light bulb and referred to as a “medium” or “standard” base. Diameter measurement is in Millimeters not inches! 26 millimeters equals 1 inch. … It’s used for nightlight bulbs, and sometimes for decorative light bulbs used in chandeliers and over bathroom mirrors.

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