Compact fluorescent light bulbs and light-emitting diodes(LEDs) are more energy efficient and less expensive to use than the traditional incandescent bulbs invevted by Thomas Edison. For example, compact fluorescent light bulbs use at least two-thirds less energy than standard incandescent bulbs to provide the same amount of light, and they last up to 10 times longer. Compact fluorescent light bulbs also generate 70 percent less heat, so they are safer to operate and can reduce energy costs associated with coolinghomes and offices