Aurora Satco S2773 120V Candelabra Base 25-Watt F10 Light Bulb

Satco S2773 120V Candelabra Base 25-Watt F10 Light Bulb, Aurora - Incandescent Bulbs -. Country of Origin: China 。 The Package Height of the Product is 3.555 centimetres 。 The Package Length of the Product is 16.002 centimetres 。 The Package Width of the Product is 8.636 centimetres 。 The basic design of the incandescent lamp has not changed much since the late 1800s, when Thomas Alva Edison successfully produced the fist operational electric light bulb. The filament inside an incandescent lamp must be protected so that oxygen does not reach it and cause it to evaporate on contact. Most incandescent lamps are either vacuum-sealed or gas-filled. Incandescent lamp filaments are made of tungsten. Tungsten is a metal that can operate at very high temperatures without evaporating too quickly an resulting in early lamp failure. Incandescent filaments only convert about 10 percent of the energy used into visible light, so it is necessary to use a material that can withstand extremely high temperatures. Most lamps use a coiled filament design, which has been found to be stronger and deliver better performance.。

Aurora Satco S2773 120V Candelabra Base 25-Watt F10 Light Bulb