Standard Lamp Light Bulb Size

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Standard lamp light bulb size.

A19 led filament bulbs in ceiling fan fixture a21 led bulbs in bedroom lamps a19 gold tint led filament bulb in porch light fixture a19 led fireworks bulbs in string lights. From top left to bottom right. Light bulb base chart four bros lightinglight bulb socket types chart decorative halogen base typelight bulb socket sizes chart garage sanctumlight bulb shape and size chart reference charts bulbslight bulb. The most commonly used a series light bulb type is an a19 bulb or its metric iec equivalent the a60 bulb which is 19 8 in 2 3 8 in.

1 888 455 2800 fax 1 508 363 2900. Although a shaped lamps are similar the difference is in size. Standard arbitrary a bulbs are the most widely used and thought of when it comes to household lighting. Bulbs with these base types can be used interchangeably as there is only a 1 millimeter difference in base size.

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. Bulbs with these bases are the most popular of all screw base bulbs. Light bulbs with decorative filaments and shapes such as edison bulbs are the finishing touch for edgy industrial style lights or any fixture where the light source. Other sizes with a data sheet in iec 60064 are a50 a55 a67 a68 a71 a75 and a80.

Place edge of the light bulb to be identified on the top end of the scale and measure the approximate diameter by reading the measurement at the opposite edge of the light bulb. 1 888 455 2800 fax 1 508 363 2900. 60 mm wide at its widest point and approximately 4 3 8 inches 110 mm in length. The a19 and a21 lamps are usually blended due to their similar characteristics.

To determine a light bulb size use the full size scale shown calibrated in eighths. You can compare most common e size designations with a thread diameter see the specific light bulb name for that size see what are the most common applications and even see the official standard for light bulbs. An a19 light bulb is 19 eighths of an inch or 19 8 in diameter. Usually both can be used for the same application but remember that the a21 is larger and may not fit on table lamps ceiling fans etc.

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