LEDs dominate now, but light bulbs have a fascinating 200 year history

In 2018 the LED lighting market was worth almost $52 billion and is expected to reach over $112 billion by 2024. But 200 years before LEDs were a multibillion-dollar industry, and decades before Edison showed up, light bulbs were an idea just starting to enter the minds of curious scientists. They may look the same, but the lights of today are almost nothing like those of yesterday. Watch the video to find out more about the transformation of the light bulb.