According to ENERGY STAR, lighting accounts for 12 percent of home energy costs. If you're using inefficient light bulbs, this can really add up. Switching from incandescent bulbs to LED bulbs can decrease your energy use and reduce your energy costs. Compare cost, lifespan, and wattage to find the right bulb for your home: http://www.delmarfans.com/educate/light-bulb-comparison/