You asked: Are a19 and a21 light bulbs interchangeable?

Are A19 lamps compatible in A21 lampholders? Yes, because A19 lamps are smaller in all dimensions than A21 lamps, they will fit in virtually all fixtures and lampholders designed for A21 lamps. Since they utilize the same E26 base, the A19 lamps will fit into the socket just fine.

Are A21 and A19 the same?

A typical A19 is 2.375 inches in diameter (19/8 = 2.375) and 4.13 inches in height, while an A21 is 2.625 inches in diameter (21/8 = 2.625) and about 5 inches in height. … Save for the slightly larger bulb and longer neck, the A21 looks just like an A19, and it is intended for many of the same fixtures and purposes.

Are A21 bulbs brighter than A19?

So it is easy to understand an A21 bulb always has higher lumens than an A19 as there is larger area for heat to escape from.

What are A21 bulbs used for?

The A Group: A15, A19, A21, and A25 | Shop Now

These bulbs work well for a variety of applications, such as ceiling lights, lamps, vanity lights, kitchen lights, closet lights, porch light fixtures, and so many more. Numbers in each code refer to the bulb’s diameter in one-eighths of an inch.

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What bulbs are compatible with A19?

A19 bulbs always use E26, but not vice versa

According to ANSI standards, A19 bulbs must always use an E26 base for mounting into a light fixture.

Are A21 and A23 bulbs interchangeable?

A light fixture designed for an 150 Watt maximum incandescent lamp would have anticipated a lamp size not to exceed A21 and they would have made the fixtures not accept an A23 because the larger the diameter of the lamp the larger wattage when considering incandescent lamps.

What is the difference between A21 and A23 bulbs?

To tell the difference between one A-shaped bulb and another, the bulbs are classified based on their diameter. A23 bulbs are slightly larger than A21 bulbs and typically have higher lumens and wattages. Their A-shape and wider diameter make them popular for use in larger fixtures.

Is type A bulb same as A19?

The most commonly used A-series light bulb type is an A60 bulb (or its USC equivalent, the A19 bulb), which is 60 mm (19/8 in or 2 3/8 in) wide at its widest point and approximately 110 mm (4 3/8 in) in length.

What bulb is smaller than A19?

A15 bulbs are slightly smaller than A19 bulbs and typically come in outputs ranging from 10 watts to 40 watts. These smaller wattages are frequently used in applications such as appliances, signage and decorative lighting. A15 LED bulbs have now started to appear.

Are A19 regular bulbs?

What are A19 Bulbs? A-Shape (“Arbitrary”) A19 LED light bulbs, or general service bulbs, are likely the light bulb shapes we are all most familiar with. It’s standard light bulb shape is so ubiquitous that this is likely the first form factor you think of when someone says “light bulb”.

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What is A19 bulb vs E26?

A19 refers to the shape and size of the bulb itself. “A” stands for Arbitrary — just the name of the shape that’s familiar to most of us. “19” refers to the size — in this case, 19/8″ (or 2 3/8″) across. E26 refers to the type and size of the base — the part that goes into the light socket.