Christmas lights typically draw between 1 to 20 amps of electricity. The exact amount of electricity needed depends on the number and type of lights, as well as the wattage of each light. For example, smaller, less powerful lights may draw 1 amp or less, while larger, brighter lights may draw up to 20 amps or more. It is important to ensure that the wiring and circuit breaker in your home are able to handle the amount of electricity required to safely operate your Christmas lights.