Satco S4884 120V 250 Watt R40 Medium Base Shatterproof Heat Lamp, Red
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Product Feature
- 5000 Average rated hours
- 250-Watt medium base
- Red R40 bulb
Product Description
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.Satco S4884 120V 250 Watt R40 Medium Base Shatterproof Heat Lamp, Red Review
The lamp was delivered in good order and it works just like it was supposed to. Very hot for a little extra needed warmth in my room in Afghanistan where there are no heaters allowed. Comforting to have the pillow heat up over my head and feel the added toasty heat!Most of the consumer Reviews tell that the "Satco S4884 120V 250 Watt R40 Medium Base Shatterproof Heat Lamp, Red" are high quality item. You can read each testimony from consumers to find out cons and pros from Satco S4884 120V 250 Watt R40 Medium Base Shatterproof Heat Lamp, Red ...
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