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Flip the switch to energy-efficient lighting This do-it-yourself guide makes it easy to upgrade residential and commercial lighting to reduce costs and environmental impact while maintaining or even improving the quality of the lighting. Filled with step-by-step instructions, Green Lighting shows you how to save money and energy with light-emitting diodes (LEDs), compact fluorescent lighting (CFL), solar lights, windows, skylights, fixtures, controls, and other bright ideas. Methods for calculating return on investment, plus recommended sources for energy-efficient products, are included in this practical resource. Green Lighting covers: Color temperature measurements In-depth details on the differences between LEDs and CFLs How utilities bill for electricity usage Comparing wattage and determining energy savings ENERGY STAR® ratings Purchasing appropriate bulbs, fixtures, and sensors Developing a comprehensive green lighting plan for your entire home, office, or commercial environment Incandescent, halogen, and gas-discharge lighting Solar and next-generation lighting