The light bulbs impact on society was that people now had light at all times of the day and did not need to rely on sunlight. Before the invention of the light bulb, people mainly used candles and gas lanterns for light when it was dark. ... After the light bulb was introduced, work could last much longer into the day.Dec 7, 2016
Edison made the first public demonstration of his incandescent light bulb on December 31, 1879, in Menlo Park. It was during this time that he said: "We will make electricity so cheap that only the rich will burn candles."