Philips LED's 20-year lifespan impressive… and yet disappointing

In commemoration of Earth Day, Philips Lumileds debuted the second generation of its 10-watt LED-based light bulb replacement – the follow-on to its L-Prize winning offering from last year. It's a direct swap for the classic 60-watt incandescent bulb, but priced at an exorbitant $60. Even accounting...

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