Solar energy is a combination of heat and potential energy, that comes to the surface of the earth in the form of sun rays. When the sun rays or rather the radiation of the sun reaches the surface of the earth, in transforms itself into heat and light energy.
The heat and light energy, can be utilized by different techniques, to produce usable forms of energy. Many scientists have elaborated and emphasized the advantages of solar energy as a source of energy and a raw material for usable energy production. Some of the common solar energy appliances, that can be prominently used for domestic purposes.
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About 20 percent of your home energy costs are for lighting estimates the U.S. Department of Energy. Using energy-efficient bulbs makes good economic sense. Energy-efficient bulbs also offer environmental advantages. Energy efficiency in light bulbs depends upon several factors, including light generation, usable energy and heat generation.
Different types of light bulbs use electricity in different ways to generate light. These styles include the incandescent bulb, the compact fluorescent bulb (CFL) and the light-emitting diode (LED) light. The incandescent bulb includes standard bulbs, long-life bulbs and halogen bulbs.
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