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- Main types are fluorescent, incandescent, and halogen
- Price range for one incandescent bulb: $1 - $2
- Price range for one fluorescent bulb: $10 - $150
- Price range for one halogen bulb: $4 - $75
- Compact fluorescent light bulbs are most energy efficient
- Many sizes
- Power consumed measured in watts
- Power supply required measured in volts
- The combination of watts and volts will affect the amount of light created by the bulb
- Can come in colors other than clear or white
- Incandescent bulbs sometimes used as a heat source, such as in an Easy-Bake Oven
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A light bulb is an electric lamp consisting of a glass housing containing a wire filament that produces light when heated by electricity. Traditional incandescent light bulbs are being replaced by more energy efficient fluorescent and halogen bulbs as sources of light. Other alternatives, including LED and plasma bulbs, are either available or in development for commercial use.TreeHugger: Luxim Plasma Light Bulb Kicks Some Serious LED Butt (March 29, 2009)
Light Bulb History
Though Thomas Edison is credited with inventing the electric light bulb in 1879, many other inventors' contributions led to the culmination of Edison's light bulb, and advances to light bulb technology have been made almost continuously since then. Some of the other scientists who contributed to the eventual creation of the light bulb are Humphry Davy, James Lindsay, Warren de la Rue, Jean Eugene Robert-Houdin, and Heinrich Gobel.
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Light Bulbs Questions
How do you dispose of light bulbs that have mercury in it? 1 AnswerYou have to take them to a federally licesnsed recycler. read more
Eco Friendly Lighting bulb In california? 2 AnswersHello, Eco friendly lighting provides an actual reduction in total cost of lighting including the electrical utility cost attributable to lighting.so i would li... read more
A longer wire from battery to light bulb leads to a dimmer light. Can the power difference be measured? How? 2 AnswersYou're looking for the difference in current being fed into the light bulb as a result of increased resistance inherent in a longer wire. Assume the voltage is ... read more
Why do my candelabra LED bulbs, screwed into an medium base reducer, still give off a small amount of light when the electricity is off? 2 AnswersYour brother is probably right, because there are indeed capacitors in the circuits of LED bulbs and that electricity has to come from somewhere. Another way to... read more -
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Light Bulbs Blogs
- Google Blog Search: Light Bulbs
- Core77 Design Blog Blog Post: Hulger's Freestylin' Low Energy Light Bulb
- Electro Run WordPress Blog Post: Good News, the US to Switch to Efficient Light Bulbs Too
- Gizmodo Blog Post: Rechargeable Light Bulb Ignores the Existence of the Torch
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