An A25 bulb typically has a built-in heatsink for better heat dissipation than other A-shaped bulbs. This higher wattage makes the A23 a good choice for commercial uses that call for the traditional A-shape.Ī25 bulbs are the largest of the A-shaped bulbs with a diameter of 3.7 inches. An A23 bulb typically has higher wattage than other A-shaped bulbs. Because of this similarity, A21 bulbs can be found in most of the same places A19s are, with their most popular use being around the home.Ī23 bulbs are the largest of the A-shaped bulbs with a diameter of 2.875 inches. With a diameter of about 2.6 inches, they are just slightly wider than A19 bulbs. The A19’s diameter is approximately 2.4 inches.Īfter A19, A21 bulbs are the next most popular choice. From lamps to ceiling fixtures, bathroom vanities to sconces, and so much more, there’s a use for A19 bulbs in every room of your house. The A19 bulbs are the most commonly used A-shaped bulbs. Their most popular use is in signs and decorative lighting. With a diameter of 1.875 inches, A15 bulbs are the smallest of the A-shaped family. The A23 typically has a higher wattage than the other A-style bulbs, as well. The main difference between the A-style bulbs (A15, A19, A21, A23) is their diameter.
Choose from clear and frosted styles depending on how you like the bulb to look when it's not lit. There are also different outward appearances to A15 bulbs aside from the light emitted. A-shaped LED bulbs are also typically smaller than CFLs, making them suitable for more applications.
Dimmable bulbs are a great way to change the atmosphere in the room without having to change the lightbulb.Ĭompared specifically to CFLs, LED bulbs are more durable. Many LED A195bulbs are dimmable, which means they can be used with compatible dimmer switches. Household appliances, such as refrigerators, sometimes use A15s.Īs with any light bulb style, A15 bulbs are available in a variety of wattages, color temperatures, bases, and lumens. Due to its smaller size, the A15 is often used in signs and decorative lighting.
Of all the A-shaped bulbs, the A15 has the smallest diameter. To tell the difference between one A-shaped bulb and another, the bulbs are classified based on their diameter. They are so popular, the A-shape is probably what comes to mind when someone says light bulb. A-shaped bulbs are one of the most popular bulbs used in the home.
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