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The electric arc lamp
Humphrey Davy created the first electric arc lamp. It was too bright and didn't produce light for a long enough time. -
Thomas Edison's lightbulb
Thomas Edison wanted to make a better lightbulb. He and his team discovered that a carbonized bamboo filament could last over 1200 hours. Later, they started marketing it. -
The Geissler tube
Two Germans discovered that they could make light by removing the air from a glass tube and passing an electric current through it. They became the basis of fluorescent lights. -
LED lights
Nick Holonyak Jr invented the first visible-spectrum LED in the form of red diodes. Then other colours of diodes were invented.
