In the early 21 th century the whole world paid attention to the rapid development of one area of physics – namely, optoelectronics (region, which includes light-emitting diodes – semiconductor light sources). led lighting led (born light emitting diodes – light emitting diodes) due to its cost-effectiveness, enhanced user and resource efficiency over the past decade, the cramped position of the lighting apparatus – fluorescent lamps, incandescent lamps, halogen, and many others, quickly capturing nearly all the niche lighting market. Leading manufacturers of LEDs in the world are investing large sums of money in scientific and technological research and thus the brightness of LEDs has increased substantially, allowing them to use in headlights of cars, lighthouses, marine, architectural lighting, and more. Commonly occurs increasing popularity of LED-systems in the millions of consumers, including in Russia. Improving with each time the light output performance (to date have reached 145 lumens with a watt) enabled LEDs to get serious advantage over fluorescent lamps (light output of not more than 80 lumens to watt). But besides the high luminous efficiency, low power consumption and the possibility of any color light, LEDs have a number of other remarkable properties.
Thanks to the nonthermal nature of LEDs, there is no filament, resulting in long service life. LEDs manufacturers claim life of up to 100,000 hours, which is 11 years of continuous operation – period, comparable with the life cycle of many lighting installations. Learn more at: Harold Ford, Memphis TN. Very high mechanical strength and reliability is determined by the absence of a glass bulb.