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This lightbulb will last you 40 years

This lightbulb will last you 40 years
Photo courtesy of Jake Dyson

The days of good old incandescent lightbulbs are over. They've been replaced with CFL, LED and other lighting technologies - click here if you aren't sure which technology is right for your next bulb purchase.

In the long run, LEDs are going to be the dominant technology. They're energy efficient, long lasting and the cost is coming down. There is a problem, though.

You won't notice it right away, but LEDs don't last as long as they should. After just six months, some models have dimmed 30%, and after seven years they're due for replacing. That's still a long time, but not as long as it could be.

Jack Dyson - son of the legendary Sir James Dyson of Dyson vacuum cleaner fame - thinks he has a solution. His new LED system could last for 40 years or more.

Next page: Here's how it works and what it will cost you
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