ENERGY STAR®-rated light bulbs | A Bright Future

Incandescent light bulbs are extraordinarily inefficient. Of the energy they consume, just 10% emits as visible light and a whopping 90% emits as waste heat. According to ENERGY STAR®, if every household in the United States changed one incandescent light bulb for an ENERGY STAR rated bulb, the annual energy cost savings would approach $600 million and greenhouse gas emissions would drop by 9 billion pounds. This would be like taking 800,000 cars off the road. ENERGY STAR-rated light bulbs save energy by using 75% less energy and by emitting 75% less heat, thus reducing home cooling costs. These bulbs...