Part 2 of Advantages of LED Lighting. Directional Light Emission Traditional light sources emit radiant energy in all directions. As such, an optical system—a lamp housing or a luminaire, with elements such as a reflector or lens—is typically necessary to direct output in the desired direction. Because no optical system is perfectly efficient, losses in […]
LED technology continues to develop rapidly as a general light source. As more LED lighting products are introduced on the market, what do retailers, energy efficiency advocates, and consumers need to know to make informed buying decisions? Are LEDs ready for general consumer use? The number of white-light LED products available on the market continues […]
Part 6 of Energy-Efficient Lighting. Lighting represents 20% to 25% of the electricity consumed in the USA. An average family spends 5% to 10% of its energy for lighting budget, while businesses consume 20% to 30% of their total energy for lighting only. In a residential or commercial lighting installations, 50% or more waste of […]