Edison screw

Edison screw

The Edison screw fitting is a system of light bulb connectors, developed by Thomas Edison in 1909 under the Mazda trademark. The designation E"xx" refers to the diameter in millimeters, e.g. E12 has a diameter of 12 mm.

In the US the standard size for general purpose lamps is E26. Other base sizes are used for small lamps, such as E12 for candelabra fixtures and E10 on some Christmas lights. E17 is also common, especially in some table lamps.

In countries which use 230-240 volts AC domestic power, E27 and E14 are the most common sizes, although the Bayonet mount is also used.

Larger sizes (E39, E40) are used for higher powered lighting, generally for lamps of over 250 watts.

Some adapters for wall outlets use an Edison screw.

Edison screw cap fittings

ee also

*Bipin
*Bayonet mount
*MR16
*GU10
*Kovar material for joining bulb glass to metal


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Edison Screw — Support des lampes électriques Pour les articles homonymes, voir Culot. Ampoule électrique 230/240 V à culot à vis Edison E27 (27 mm) Le suppor …   Wikipédia en Français

  • Edison screw — Support des lampes électriques Pour les articles homonymes, voir Culot. Ampoule électrique 230/240 V à culot à vis Edison E27 (27 mm) Le suppor …   Wikipédia en Français

  • Edison screw — A light bulb base that is threaded …   Dictionary of automotive terms

  • Edison (disambiguation) — Edison is the last name of Thomas Edison (1847 ndash;1931), an American inventor.Edison may also refer to:Thomas Edison legacies* Edison Bridge (disambiguation), various locations * Edison effect, thermionic emission discovered by Edison * Edison …   Wikipedia

  • screw — [1] A spiral path along a cylinder. [2] A fastening device. A screw is like an inclined plane wrapped up. It can take a rotating force and change it into a much larger straight line force. See adjusting screw aiming screw air bleed screw air… …   Dictionary of automotive terms

  • Screw magazine — “The World’s Greatest Newspaper” was founded in 1968 by Al Goldstein. Begun as a response to a burgeoning sexual revolution and to the air brushed soft pedaled sexuality in magazines such as Playboy , Screw set out to be the most outrageous… …   Wikipedia

  • Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

  • screw base — srieginis lizdas statusas T sritis radioelektronika atitikmenys: angl. screw base; screw cap; screw socket vok. Edisonfassung, f; Schraubsockel, m rus. резьбовой цоколь, m pranc. culot à vis, m; culot Edison, m; culot fileté, m …   Radioelektronikos terminų žodynas

  • screw cap — srieginis lizdas statusas T sritis radioelektronika atitikmenys: angl. screw base; screw cap; screw socket vok. Edisonfassung, f; Schraubsockel, m rus. резьбовой цоколь, m pranc. culot à vis, m; culot Edison, m; culot fileté, m …   Radioelektronikos terminų žodynas

  • screw socket — srieginis lizdas statusas T sritis radioelektronika atitikmenys: angl. screw base; screw cap; screw socket vok. Edisonfassung, f; Schraubsockel, m rus. резьбовой цоколь, m pranc. culot à vis, m; culot Edison, m; culot fileté, m …   Radioelektronikos terminų žodynas

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”