Compared with incandescent bulbs and neon lights, light-emitting diodes have the following characteristics: the working voltage is very low (some are only a few volts); The working current is very small (some can only emit a few milliamps); Good impact and earthquake resistance, high reliability and long service life.
By adjusting the current intensity, the luminous intensity can be easily adjusted. Because of these characteristics, light emitting diodes are used as light sources in some photoelectric control devices and as signal displays in many electronic devices.
Extended data
From the appearance of LED in 1960s to 10 in 1980s, LED only has three colors of red, yellow and green, with low luminous efficiency, low brightness and high price. People just use it as an indicator light for electronic products. From the development and application of LED, this period is the indication application stage of LED.
With the advantages of high energy conversion efficiency, low unit power consumption and long service life, LED lighting is blowing a "green whirlwind", which not only sets off a "lighting revolution" to replace traditional incandescent lamps in the world, but also becomes one of the most promising technical fields in the world.
At the application level, because the standards and interfaces of domestic manufacturers are different at present, nearly 75% of the patents of foreign manufacturers in the field of packaging module interface components focus on standards and interfaces. The trend of global lighting network and intelligence is on the rise, and foreign manufacturers have begun to lay out. Domestic enterprises should combine street lighting with network intelligent drive control, and strengthen the research and development and reserve of core technologies.
Baidu encyclopedia dominates
People's Network -LED Lighting: "Green Light" Illuminates the World