-1879 Edison invented the electric light;
-1938 Fluorescent lamps were introduced;
In 1959, halogen lamps were introduced;
-1961 high-pressure sodium lamp was introduced;
1962 metal halide lamp;
- The first LED light in 1969 (red);
-1976 green LED light;
-1993 Blue LED light;
-1999 white LED light;
-2000 LED applied for indoor lighting.
The development of LED is the second revolution following the development history of incandescent lighting for 120 years.
Starting from the 21st century, LED, developed through the wonderful encounter between nature, humans, and science, will become an innovation in the light world and an essential green technology for humanity, the light revolution.
LED will be the beginning of a huge light revolution since Edison invented the electric light bulb.
LED lighting mainly relies on high-power white LED single lamps. The top three LED lighting manufacturers in the world have a three-year warranty, with large particles greater than or equal to 100 lumens per watt and small particles greater than or equal to 110 lumens per watt. Light decay large particles are less than 3% per year, and light decay small particles are less than 3% per year.
LED solar street lights, LED projection lights, LED ceiling lights, and LED fluorescent lights are all ready for mass production. For example, a 10 watt LED fluorescent lamp can replace a 40 watt regular fluorescent lamp or energy-saving lamp.
More and more LED energy-saving lights have entered the homes of ordinary people, but they have not yet become popular!