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In the case of the 50/100/150 W bulb, putting this bulb in a regular lamp socket will result in it behaving like a normal 100 W bulb. [citation needed] A key switch 3-way socket has the switch incorporated in the lamp socket and requires no external wiring between switch and socket. This would be typical in a 3-way floor-standing floor lamp.
A lightbulb socket, lightbulb holder, light socket, lamp socket or lamp holder is a device which mechanically supports and provides electrical connections for a compatible electric lamp base. [1] Sockets allow lamps to be safely and conveniently replaced (re-lamping).
Movable lamps have a plug and cord that plugs into a wall socket. Light fixtures may also have other features, such as reflectors for directing the light, an aperture (with or without a lens ), an outer shell or housing for lamp alignment and protection, an electrical ballast or power supply , and a shade to diffuse the light or direct it ...
The dimmer switch used in conjunction with a dimmable CFL must be matched to its power consumption range; [58] many dimmers installed for use with incandescent bulbs do not function acceptably below 40 W, whereas CFL applications commonly draw power in the range 7–20 W. Dimmable CFLs have been marketed before suitable dimmers are available.
This small device allowed the dimmer to be installed in a standard electrical wall box while saving energy. [2] [3] In 1966, Eugene Alessio patented a light bulb socket adapter for adjusting a light level on a single light bulb using a triac. To house this device, he decided on a 2-inch round device with one end capable of being screwed into a ...
A selection of consumer LED lamps available in 2012 as drop-in replacements for incandescent bulbs in screw-type sockets LED lamps are made with standard lamp connections and shapes, such as an Edison screw base, an MR16 shape with a bi-pin base, or a GU5.3 (bi-pin cap) or GU10 (bayonet fitting) and are made compatible with the voltage supplied ...