LED light Bulb Base types

The A-series bulb is the "classic" style of bulb that has been probably the most popular kind for general-purpose lighting effects applications considering that the early twentieth century. This has a pear-like form and an Edison screw base. The number that follows the "A" in the A series indicates the width of the bulb in one-eighth inches products or perhaps in millimeters.

The essential commonly used A-series light bulb kind is the A19 light bulb (or its metric equivalent, the A60 light bulb), which can be 2 3⁄8 ins (60 mm) wide at its widest point and more or less 4 ins (110 mm) in total, and contains a one-inch long (kind E26, in other words. 26 millimeters in diameter) Edison screw base. Other base kinds most frequently found in UK, Australia, and New Zealand include the E27 (for example. 27 millimeters in diameter) Edison screw base (that also fit E26 sockets), much less frequently nowadays; the B22 Bayonet perspective kind base.

Although most A-series light bulbs have historically used incandescent lighting technology, other technologies – such as for instance fluorescent or Light-emitting Diode lamps – have now been found in A-series light bulbs now.

Sources[edit]

1. "Lamp Size and Comparison Features" (PDF). WW Grainger Inc. Lamp size (optimum lamp diameter) is expressed by lots representing eighths of an inch.
2. ^ "LED University: lamp Shapes and Sizes Explained". EagleLight. 'A' kind light bulb forms are standard household hold light bulbs. The number following the light bulb shape could be the amount of eighths of an inch in diameter. For non-imperial calculated bulbs the number following bulb shape could be the amount of centimeters [sic] during the widest point for the light bulb. Standard light bulb sizes consist of A19 for imperial measurements and A60 for a slightly smaller metric measured bulb.
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