le=”text-align: justify; “>A prize-winning light bulb that lasts for 20 years is going on sale in the US on Sunday – also known as Earth Day, BBC reports.
Made by Dutch electronics giant Philips, the bulb swaps filaments for light-emitting diodes to provide illumination.
Using LEDs endows the light with a long life and a hefty price tag. The first versions are set to cost $60 (
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