The prototype lamp uses half the energy of equivalent lights on the market Lighting company Philips has developed an LED lamp that it describes as "the world's most energy-efficient". It said the ...

This story is part of a special series that explores energy issues. For more, visit The Great Energy Challenge. With a device that resembles a segmented lemon, but glows like an ordinary living room ...

When it comes to replacing existing lighting with LED lights, fluorescent tube lights seem to be low-hanging fruit. Fluorescent tubes have a massive installation base and give off kinda lousy light – ...