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How much more efficient are LED bulbs than incandescent bulbs?

“Household LED bulbs use at least 75% less energy than incandescent bulbs and last up to 25 times longer.”

Reference: US Department of Energy

What are the different types of laptop batteries?

There are currently three types of batteries commonly used to run people's laptops:
1) Nickel Cadmium (Ni-Cd) batteries were the standard technology for years, but are now out of date.

2) Nickel Metal Hydride (Ni-MH) batteries are a cadmium-free replacement for Nickel Cadmium.
3) Lithium Ion (Li-ion) is the battery you want for your laptop and is the current standard for portable power.

Did Thomas Edison invent the light bulb?

Thomas Edison didn't invent the first light bulb, but he developed the first practical, long-lasting incandescent bulb in 1879 after earlier inventors like Humphry Davy and Joseph Swan.

Who won the Nobel Prize for the blue LED?

Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura won the 2014 Nobel Prize in Physics for inventing the blue LED, which made bright, energy-saving white LED lighting possible.

Another fact

“Household LED bulbs use at least 75% less energy than incandescent bulbs and last up to 25 times longer.”

More from this shelf

What are the different types of laptop batteries?

Did Thomas Edison invent the light bulb?

Who won the Nobel Prize for the blue LED?