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  2. Bi-pin lamp base - Wikipedia

    en.wikipedia.org/wiki/Bi-pin_lamp_base

    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 ...

  3. Fluorescent-lamp formats - Wikipedia

    en.wikipedia.org/wiki/Fluorescent-lamp_formats

    120v 0,455a 80w 152v 0,530a t5: 6w 42v 0,160a 8w 56v 0,145a 13w 95v 0,165a t8: 14w 38v 0,395a 15w 55v 0,310a 18w 57v 0,370a 25w 84v 0,360a 30w 96v 0,365a 32w 135v 0,265a 36w 103v 0,430a 58w 110v 0,670a 70w 128v 0,700a t9c: 22w 62v 0,400a 32w 84v 0,450a 40w 115v 0,415a t12: 20w 57v 0,370a 40w 103v 0,430a 75w 130v 0,670a 85w 120v 0,800a t12 ...

  4. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    Common 3 phase configurations within a building are 208v/120 wye, 120/240 center tapped delta and 480v/277v wye. Lighting is usually fed by 277 V or 120v. Countries such as Mexico may adopt the NFPA standard as their national electrical code, with local amendments similar to those in United States jurisdictions.

  5. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    In 1903, Harvey Hubbell filled the U.S. patent 774,250, for a lightbulb socket adaptor and plug, also a standalone receptacle.The adaptor was screwed into the lightbulb socket, leaving a flat face with two holes to conveniently attach the plug.

  6. Edison screw - Wikipedia

    en.wikipedia.org/wiki/Edison_screw

    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.

  7. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    This Soviet plug, still sometimes used in the region, has pin dimensions and spacing equal to the Europlug, but lacks the insulation sleeves. Unlike the Europlug, it is rated 6 A. It has a round body like the European CEE 7/2 or flat body with a round base like CEE 7/17. The round base has no notches. The pins are parallel and do not converge.

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