Journey of  Lighting System 

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1. By Fire Torch

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Used in ancient time for a long long period

2. By Earthen Lamp

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Used in ancient time & found traces in Ramayana when Lord Rama returned to Ayodhya after defeating Ravana

3. By Oil Lamp

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Was being used for many years till recent past

4. By Electric Incandescent Bulb

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Invented by Thomas Edison in 1879

5.By Fluorescent Lamp

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Invented by  Edmund Germer  in 1935 

6. By CFL (Compact Fluorescent Lamp)

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Invented by Edward Hammer in 1976

7. By LED (Light Emitting Diode)

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Invented by Nick Holonyak Jr. in 1962

8. Plant Grow LED

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This LED light helps to grow plants artificially

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Thanks