Ads
related to: 40w 120v candelabra base bulb size table pdf
Search results
Results From The WOW.Com Content Network
The light bulb commonly used since the early 20th century for general-purpose lighting applications, with a pear-like shape and an Edison screw base, is referred to as an "A-series light bulb." This most common general purpose bulb type would be classed as "A19/E26" or the metric version "A60/E27".
230/240-volt incandescent light bulb with E27 screw baseEdison screw (ES) is a standard lightbulb socket for electric light bulbs. It was developed by Thomas Edison (1847–1931), patented in 1881, [1] and was licensed in 1909 under General Electric's Mazda trademark.
Other sizes with a data sheet in IEC 60064 are A50, A55, A67, A68, A71, A75, and A80. Another common A-series light bulb type is the A15 bulb which is commonly used in the US for appliances and ceiling fans. The A15 bulb is 15 ⁄ 8 in (1 + 7 ⁄ 8 in; 48 mm) wide at its widest point and 3.39 inches tall.
These bulbs tend to be transparent white or colors, and are often ornately designed with crystal-like patterns. Later bulbs called C 7 + 1 ⁄ 2, have diameters of seven and a half 1/8th inches (15 ⁄ 16 in, or 24 mm) using an E12 candelabra base; however, these have a blunt shape (and should therefore be called B 7 + 1 ⁄ 2, or B24).
Thus the glass bulbs or envelopes are created. A typical machine of this sort can produce anywhere from 50,000 to 120,000 bulbs per hour, depending on the size of the bulb. [108] [109] By the 1970s, 15 ribbon machines installed in factories around the world produced the entire supply of incandescent bulbs. [110]
The suffix after the G indicates the pin spread; the G dates to the use of Glass for the original bulbs. GU usually also indicates that the lamp provides a mechanism for physical support by the luminaire: in some cases, each pin has a short section of larger diameter at the end (sometimes described as a "peg" rather than a "pin" [2]); the socket allows the bulb to lock into place by twisting ...