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LED (Light-Emitting-Diode) is a semiconductor that conv […]
LED (Light-Emitting-Diode) is a semiconductor that converts electrical energy into visible light. It changes the principle of incandescent tungsten filament illumination and energy-saving lamp tri-color toner illumination, while using electric field illumination [/color ]. According to analysis, the characteristics of LED are very obvious, long life, high luminous efficiency, no radiation and low power consumption. The spectrum of the LED is almost entirely concentrated in the visible light band, and its luminous efficiency can reach 80 to 90%. Comparing LED with ordinary incandescent lamp, spiral energy-saving lamp and T5 trichromatic fluorescent lamp, the results show that the luminous efficiency of ordinary incandescent lamp is 12lm/W, the service life is less than 2000 hours, the luminous efficiency of spiral energy-saving lamp is 60lm/W, and the service life is less than 8000 hours, T5 fluorescent lamp is 96lm / W, life expectancy is about 10,000 hours, and white LED with diameter of 5 mm is 20 ~ 28lm / W, life can be more than 100000 hours. Some people also predict that the future LED life limit will be infinite.
Compared with traditional light bulbs, the advantages of LEDs are:
·Lighting without delay, faster response time, traditional bulb bulb has a delay of 0.3 seconds to prevent rear-end collision
·Strong seismic performance
·High luminescence purity, no need for lamp cover filtering, light wavelength error within 10 nm
·The heat of luminescence is very small, and the heat resistance of the luminaire material is not very high.
·The beam is concentrated, it is easier to control, and it does not need to be concentrated by the reflector, which is beneficial to reduce the depth of the lamp.
· Low power consumption, when the brightness of the traditional light bulb is the same, the power consumption is only 6% of the traditional light bulb, saving electricity and saving fuel.
·Long life, no filament structure, no heat, normal use for more than 6 years
· Vehicle control circuit is not easy to oxidize