GE Light Bulb Lasts 17 Years

GE has revealed a new light bulb that will last 17 years. The LED bulb only uses 9-watts and will produce equal amounts of environmental lighting as a standard 40-watt unit. The new light bulb will be available in 2011.

“This is a bulb that can virtually light your kid’s bedroom desk lamp from birth through high school graduation,” GE spokesperson, John Strainic, said in a statement.

17 years is a long time for a bulb. However, some critics suggest that its inventor, Thomas Edison, knows a bit more than modern manufacturers. The lamps that are used in his former Florida vacation home are still burning to this day.

Moreover, the new bulb uses LED (light-emitting diode) technologies. The popular bulbs today are fluorescent because they are less expensive than LED. The price for the new General Electric Energy Smart bulb is $50.

Companies Revealing New Lighting Products

Lemnis Lighting recently unveiled the first household LED bulb that dims, Digital Lumens offered up its system of networked LED lights, and companies like Philips, Panasonic, and Toshiba have rolled out LEDs of their own. However, the biggest evidence comes from the new GE Energy Smart LED bulb.

Governments Ban Incandescent

Governments have passed measures to prohibit the sale of future incandescent light bulbs. The aim is to encourage the use of more energy efficient lighting alternatives, such as a compact fluorescent lamp (CFLs) and LED lamps. Brazil and Venezuela started to phase them out in 2005, most of Europe by 2011, and Canada and the United States will ban them in 2012.

LED Sources

A light-emitting diode (LED) is a semiconductor light source. LEDs are used as indicator bulbs in many devices, especially in electronics. The technology was introduced as a practical electronic component in 1962. The early versions emitted low-intensity red light, but modern versions are available across the visible, ultraviolet and infrared wavelengths, with very high brightness.

The LED is based on the semiconductor diode. When a diode is forward biased (switched on), electrons are able to recombine with holes within the device, releasing energy in the form of photons. This effect is called electroluminescence and the color of the light is determined by the energy gap of the semiconductor.

An LED is usually small and integrated optical components are used to shape its radiation pattern and assist in reflection. LEDs offer several advantages over incandescent bulb sources including lower energy consumption, longer lifetime, improved robustness, smaller size, faster switching, and greater durability and reliability. However, they are relatively expensive and require more precise current and heat management.

Current LED products for general use are more expensive to buy than fluorescent lamp sources of comparable output. The new technology is already used as traditional lamp sources in cars and traffic signals. Digital road signs are also being used with LED.

The travel industry uses LEDs in their A320 Enhanced Airbuses in an effort to save energy. Boeing plans to use it in the 787. The compact size of LEDs is also used in new text and video displays.

Most materials used for LED production have very high refractive indices. This means that much light will be reflected back into the material at the material/air surface interface. Therefore, lamp extraction in LEDs is an important aspect of LED production.

The low energy consumption of modern LEDs has led to applications as status indicators and displays on a variety of equipment and installations. Large area LED displays are used as stadium displays and as dynamic decorative displays. Thin message displays are used at airports and railway stations, and as destination displays for trains, buses, trams, and ferries.

LEDs are being used increasingly commonly for reef aquariums. It provides an efficient light source with less heat output to help maintain optimal aquarium temperatures. LED-based aquarium fixtures also have the advantage of being manually adjustable to produce a specific color-spectrum for ideal coloration of corals and fish.

LEDs are used for exterior decorating as well. Some of the uses include outdoor decor around trees and plants, limousines, cargo trailers, conversion vans, cruise ships, RVs, boats, automobiles, and utility trucks. Decorative LED lighting can also come in the form of exterior company signs and aisle lighting in theaters and auditoriums.

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