Soraa, the Khosla Ventures-backed startup that uses the semiconductor gallium nitride rather than sapphire in its LED and laser technology, came out of stealth mode Tuesday and unveiled its flagship ...

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Three: a halogen, a CFL, and an LED. (Rimshot.) Don't get it? You will on Jan. 1, 2014. That's when manufacturers will stop producing 60-watt and 40-watt incandescent lightbulbs to comply with a ...

A popular form of lightbulb used in households across the UK will be banned from today as part of the government's plans to tackle climate change. Halogen light bulbs will be banned from sale in the ...