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The spectrum of LED is almost all concentrated in the visible light frequency band, and its luminous efficiency can reach 80-90%. Compared with ordinary incandescent lamps, spiral energy-saving lamps and T5 three-primary fluorescent lamps: the luminous efficiency of ordinary incandescent lamps is 12lm/w, and the lifespan is less than 2000 hours. The luminous efficiency of spiral energy-saving lamps is 60lm/w and the lifespan is less than 8000 hours. The T5 fluorescent lamp is 96Alm/w, with a lifespan of about 10,000 hours, while the white LED with a diameter of 5 mm is 20-28lm/w, and its lifespan can be greater than 100,000 hours. Some people also predict that the upper limit of LED life in the future will be infinite.
LED operating voltage is low, mostly 1.4-3V; ordinary LED operating current is only 10mA, and ultra-high brightness is only 1A. In the production process of LED, no "mercury" is added, no inflation, no glass shell, good impact resistance, good shock resistance, not easy to break, easy to transport, very environmentally friendly.
The LED is small in size and light in weight, and the outer shell is encapsulated by epoxy resin, which not only protects the internal chip, but also has the ability to transmit light and concentrate light. The service life of LED is generally between 50,000 and 100,000 hours. Because LED is a semiconductor device, even frequent switching will not affect the service life.
The response frequency fτ of the LED is related to the life time τmc of injected minority carriers. For example, an LED made of GaAs material has a τmc in the range of 1-10ns, and the response frequency is about 16-160MHz. Such a high response frequency is enough to display a 6.5MHz video signal, which is one of the key factors in realizing a large video LED screen.
The luminous efficiency of incandescent lamps and tungsten halogen lamps is 12-24lm/w (lumens/watt), the luminous efficiency of fluorescent lamps is 50-70lm/w, and the luminous efficiency of sodium lamps is 90-140lm/w. Most of the power consumption becomes heat loss. The luminous efficiency of LED can reach 50-200lm/w after improvement, and the light has good monochromaticity and narrow spectrum, and can directly emit colored visible light without filtering.
It is more convenient for the arrangement and design of various equipment, and can better achieve the effect of "seeing the light but not the light source" in night scene lighting.
Concentrated in a small wavelength window, with high purity.
The brightness attenuation is much lower than that of traditional light sources.
The above content is provided by WOSEN. WOSEN is a professional manufacturer and supplier of Led Flood Light, Led Street Light, Led Solar Light, etc. For more information, please visit https://www.wosenled.com/ or contact admin@wosenled.com or WhatsApp +86-13425434349
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