do christmas tree lights use a lot of electricity

Yes, Christmas tree lights do use a considerable amount of electricity. The exact amount depends on the type of lights used and how many are on the tree. LED lights are more energy-efficient than traditional incandescent lights, but they still consume electricity. The best way to minimize the impact on your electricity bill is to use an energy-efficient LED strand and to turn the lights off when not in use. Additionally, you can consider using a timer to automatically turn the lights on and off at certain times.