bulb

The good news: Philips has launched a brand new light bulb designed to last for 20 years or more and save hundreds of dollars in electricity charges before needing replacement. The bad news: The bulb carries a retail price tag of $60. The new ... Philips bulb is a prime example of alternative energy-saving technology that wallops the inefficiency of today's conventional but popular devices. The reason: Traditional light bulbs work by heating a thin metal filament inside a glass bulb. While this produces light from the glowing filament, it also wastes a lot of the energy. In fact, conservationists ... (view more)