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Lighting Memorabilia
Dec 14, 2018

- 1879 Edison invented the electric light;

- 1938 fluorescent lamps are available;

- 1959 halogen lamp is available;

- 1961 high pressure sodium lamp came out;

—1962 metal halide lamp;

—1969 The first LED light (red);

—1976 green LED light;

—1993 blue LED light;

—1999 white LED light;

—2000 LEDs are used in indoor lighting.

The development of LED is the second revolution in the 120 years since the development of white heat lighting.