Emergency? Call 1-800-ALLIANT (800-255-4268)

LED Holiday Lights Calculator


  1. We have rounded the dollar savings amounts to the nearest dollar. As a result, if your savings is less than 50 cents, your savings will appear as $0 (but you would still be achieving savings).
  2. Some light strings have more lights than others, so your energy savings could vary from the figures presented by this calculator.
  3. Savings Calculation Formula: Bulb Wattage x Usage Hours Per Month / 1,000 x $.10 (average cost of electricity per kWh) = Total Operating Cost Per Month

Notice: This calculator is intended for estimation purposes only and the savings shown are not guaranteed.