-Edison invented the electric light in 1879;
—— Fluorescent lamps came out in 1938;
——The halogen lamp came out in 1959;
-The high-pressure sodium lamp came out in 1961;
— 1962 metal halide lamp;
—The first LED light (red) in 1969;
—1976 Green LED lights;
— 1993 blue LED lights;
— 1999 white LED lights;
—2000 LED is used for indoor lighting.
——The development of LED is the second revolution after the 120-year history of incandescent lamps.
-Starting from the 21st century, the LED developed through the wonderful encounter of nature, man and science will become an innovation in the light world, a green technology light revolution indispensable for mankind.
——After Edison invented the light bulb, LED will set off a huge light revolution.
LED lighting is mainly high-power white LED single lamp. The world's top three LED lighting manufacturers provide 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. Large light decay particles are less than 3% per year, and small light decay particles are less than 3% per year.
LED solar street lights, LED flood lights, LED ceiling lights, LED fluorescent lights, etc. have been mass-produced. For example, a 10-watt LED fluorescent lamp can replace a 40-watt ordinary fluorescent lamp or energy-saving lamp.
Post time: Aug-07-2021