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Wednesday, April 28, 2010


A Lamp, commonly called a 'light bulb', is the removable and replaceable portion of a light fixture which converts electrical energy to visible light. 
There are several types of lighting lamps.  Common characteristics used to evaluate lamp quality include efficacy measured in lumens per watt, typical lamp life measured in hours, cost of replacement lamps and Color Rendering Index on a scale of 0 to 100. 

Lighting or illumination is the application of light to achieve some aesthetic or practical effect. Proper lighting can enhance task performance or aesthetics, while there can be energy wastage and adverse health effects if the lighting is poorly designed. Lighting is done with the help of lighting fixtures and lighting lamps. Lighting Fixtures are electrical devices used to create light.

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