Advantages of LED diodes


Advantages of LED diodes

The advantages of LEDs:  
·         small sizes [comparing to a typical light bulb you could say that the LEDs are very small, which makes it possible to use in many places inaccessible to traditional lighting]
·         very high efficiency [i.e. very small losses when converting electricity into light, which directly translates into savings]
·         possibility of lighting for a given color [LEDs produce light instantly in a specific color, so you do not need to use filters that stop a lot of light or phosphors, which also, reduce efficiency and burn out. In addition, this feature gives extremely saturated colors unavailable to other technologies]
·          focused a beam of light [LEDs thanks to a very small light-producing point do not need reflectors and mirrors to get a narrow, focused beam of light, just one simple lens and after the case. In some applications this may also be a disadvantage]
·          No "current impact" when switching on [what's going on? Well each bulb at the time of inclusion gets much more power than its nominal one. This is because the cold filament has a much lower resistivity than the hot one, so as long as it does not get warm it takes a much larger current. This means that frequent switching on bulbs not only increases electricity consumption but also shortens the life of the bulb. LEDs do not have this disorder]
·         Very long life [this advantage should be explained for a long time. Branded LEDs have a lifespan of 30-100 thousand hours. However, this is not working time, after which the diode will burn like a light bulb. The LEDs do not stop flashing suddenly, they gradually lose their brightness. Most of the good producers give their life as a burning time, after which the LED will lose 30% of its brightness. In practice, this means that after 30,000 hours, the diode will be shining for many years to come, but less and less! So we will not surprise the Egyptian darkness and we will have a lot of time for a possible change of lighting]
·         resistance to damage [LED diodes due to their compact structure and the lack of loose or brittle mechanical parts (filament, glass, etc.) are very resistant to mechanical damage, as well as to moisture and low temperature. No problem with vibrations, shocks or falls]
·         Ecology [LEDs do not contain mercury or other harmful substances, and due to their longevity, they are rarely thrown away. Of course, they contain a small amount of chemical compounds responsible for the color of light, but due to the size, there are few of them and are harmless.]
·         Narrowband of radiation [the light generated by the LEDs has a very narrow radiation range, because the diode sends only one wavelength (or color). Thanks to this, the colors of the diode light are very saturated and look much better than from other sources. In addition, the LED light does not contain neither infrared nor ultraviolet (unless the LED is to be illuminated in this range). In some applications, it has enormous significance, as for example in the museum display cases with exhibits sensitive to ultraviolet or infrared]

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