how are energy efficient light bulbs energy efficient?

Question

how do they work?

Answer 1

Energy efficient light bulbs are compact spiral florescent bulbs that only use about 14 watts for a bright 60 watt output. Don't wait until the old bulbs burn out and replace the bulbs used most as you will really save lots of money with the new bulbs. Check around for good prices, but I found six in one package or box at Walmart to be my best buy.

ENERGY STAR qualified lighting provides bright, warm light but uses about 75% less energy than standard lighting, produce 75 percent less heat, and lasts up to 10 times longer.

Answer 2

They are filled with a gas which gives off UV when it has electricity applied to it. The UV is absorbed by a coating on the bulb which in turn releases visible light. They are efficient because it requires a lot less electricity to produce the same amount of light. The idea that they truely are more energy efficient is a little misleading though. They do use less electricity to provide lighting, but they require more energy in the manufacturing process.

Answer 3

They are fluorescent lights. They use electricity to ionize a thin gas which emits ultra violet light which hits a phosphor coating the inside of the lamp causing it to glow in visible light. This is a much more efficient way to make light than just heating up a wire until it glows white hot, which is exactly what a regular incandescent light bulb does. In that kind of bulb, almost all the energy comes out as infrared light, which is invisible; it is heat.

Answer 4

The fluorescent bulb burns a gas to produce light which does not take as much energy as an incandescent bulb.

Answer 5

They use less energy than regular ones, they last longer, and give more light.
in laymans terms, that makes them energy efficient