LED light bulbs are already supposed to be energy-efficient, but Signifiy thinks it can improve on the formula. The company has released Philips Ultra Efficient LED bulbs that, as the name implies, ...

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Signify is introducing the first Philips Ultra Efficient LED bulbs with a longer lifespan, providing consumers with a smart investment for both the planet and their purses. The more sustainable LED ...

Energy-efficient LED bulbs are becoming more and more popular each day. They use light-emitting diodes (LEDs) to produce light. Compared to traditional incandescent bulbs, LED bulbs use less energy, ...

The marketplace for more-or-less normal-looking LED light bulbs became just a little more crowded yesterday, when Philips announced the dimmable 75-watt equivalent version of its SlimStyle bulb. With ...

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 ...