The U.S. spends about one-quarter of its electricity on lighting at a cost of more than $37 billion annually. By making improvements to your lighting, you are guaranteed to cut your energy bills. With about 8-11% of a homes energy bill going to lighting, using new lighting technologies can reduce lighting energy use in your home between 50% and 75%. Advanced lighting controls like motion sensors offer additional energy savings by automatically turning lights off when not in use.