This is a question that we are asked even today after the publication of numerous case studies. It is a legitimate concern as many have added insulation to their homes, high efficiency boilers, and other systems with high expectations of savings. Lighting power consumption is based on the very simple factor of watts consumed. For example an LED lamp that consumes 5 watts of energy and which replaces a halogen or incandescent lamp that consumes 50 watts will produce 90% energy savings. For a light that is rarely used, say in a closet for example, the savings might be minimal. But for a restaurant, retail store, or even a home where the lights are on for many hours every day the savings is substantial. Return on investment is now averaging between 6 to 12 months. This means that your investment in buying LED’s will start paying you back in less than a year. Where you once hat utility bills of $200 per month for lighting you could expect to now pay just $20 per month. See the savings first hand on our calculator.