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2. Wedge base - Wikipedia

   en.wikipedia.org/wiki/Wedge_base

   (The wedge bases are now usually not even supplied with the bulbs, which cost nearly as much as buying a new set, typically 10 bulbs for a dollar but a new set of 100 for two dollars.) Modern sets typically have a long and thin wedge that extends all the way down to the back end of the socket, separating the two electrical conductors and ...

3. Lightbulb socket - Wikipedia

   en.wikipedia.org/wiki/Lightbulb_socket

   A wedge base holds the lamp by spring compression in the socket. The lamp is inserted and removed without twisting. Wedge base lamps are widely used in automotive applications, and many Christmas lights strings use plastic wedge-based bulbs. Other wedge bases include strip lamps, sometimes called architectural lamps, with S14s connections ...

4. 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 ...

5. Tube socket - Wikipedia

   en.wikipedia.org/wiki/Tube_socket

   Loctal tube type numbers in the USA typically begin with "7" (for 6.3-volt types) or "14" for 12.6-volt types. This was fudged by specifying the heater voltage as nominally 7 or 14 volts so that the tube nomenclature fitted. [17] Battery types (mostly 1.4-volt) are coded "1Lxn", where x is a letter and "n" a number, such as "1LA4".

6. Mains electricity by country - Wikipedia

   en.wikipedia.org/wiki/Mains_electricity_by_country

   Sockets in older buildings are often unearthed and accept only type A plugs. Tajikistan: C, F, I 220 V 380 V 50 Hz Tanzania: D, G 230 V 400 V 50 Hz Thailand: A, B, C, O TISS 166-2549 [60] [61] 220 V 400 V 50 Hz Sockets are combisockets that accept American (A, B) and Europlugs (C) as well as the newly introduced Thai plug (O).

7. Edison screw - Wikipedia

   en.wikipedia.org/wiki/Edison_screw

   230/240-volt incandescent light bulb with E27 screw base Edison 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.

8. AC power plugs and sockets - Wikipedia

   en.wikipedia.org/wiki/AC_power_plugs_and_sockets

   The type 11 plug is unearthed, with two 4 mm diameter round pins spaced 19 mm apart. The type 12 plug adds a central 4 mm diameter round earth pin, offset by 5 mm. The type 12 socket has no recess, while the type 13 socket is recessed. Both sockets will accept type 11 and type 12 plugs, and also the 2.5 A Europlug.

9. EmPower (aircraft power adapter) - Wikipedia

   en.wikipedia.org/wiki/EmPower_(aircraft_power...

   EmPower is a 120-volt universal connector type found on many commercial airlines designed to provide power to travelers' electronic devices. The system is limited to 200 VA. The EmPower universal AC outlet is compatible with power plugs from over 170 countries and is designed such that 110 V AC power is not present at the outlet until a ...