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  • Satco S4994 120V Candelabra Base 7.5-Watt B9 1/2 Showroom Bulb, Clear
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Satco S4994 120V Candelabra Base 7.5-Watt B9 1/2 Showroom Bulb, Clear

by Satco

Price: $4.87 & FREE Shipping on orders over $35. Details
Only 6 left in stock.
Ships from and sold by Amazon.com. Gift-wrap available.
  • 3000 average rated hours
  • 7.5-Watt candelabra base
  • Clear light bulb
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Product Information

Technical Details
Part Number S4994
Item Weight0.8 ounces
Product Dimensions1 x 1 x 3.5 inches
Item model numberS4994
Discontinued by manufacturerYes
ShapeB9
Voltage120 volts
Wattage7.5 watts
Item Package Quantity1
Type of BulbIncandescent
  
Additional Information
ASINB003YNWFJY
Best Sellers Rank #561,961 in Home Improvement (See top 100)
Shipping Weight0.8 ounces (View shipping rates and policies)
ShippingThis item is also available for shipping to select countries outside the U.S.
Date First AvailableAugust 7, 2010
  
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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.

Important Information

Wattage
7.5 Watts

Bulb Voltage
120 Volts

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