Energy-efficient fixtures, appliances, and other electrical items help you save money. To save up to 80% in energy costs, replace traditional incandescent bulbs with more energy-efficient lightbulbs such as halogen incandescent, light emitting diodes (LEDs), and compact fluorescent lamps (CFLs). Not only do these upgrades increase energy-efficiency, but they can last 3-25 times longer than traditional bulbs.