As a general rule, traditional incandescent fairy lights can use around 10-20 watts of electricity per hour, while LED fairy lights use around 1-2 watts of electricity per hour. This means that if you use a strand of 100 traditional incandescent fairy lights for 10 hours, it will use around 100-200 watts of electricity, while a strand of 100 LED fairy lights will use around 10-20 watts of electricity.
However, it's important to note that the actual amount of electricity used by fairy lights can vary depending on the specific model and brand of lights, as well as the voltage of the electrical outlet they are plugged into. Some fairy lights may use more or less electricity than the amounts mentioned above.
To reduce the amount of electricity used by fairy lights, you can:
* Use LED fairy lights instead of traditional incandescent fairy lights.
* Use a shorter strand of fairy lights.
* Use a timer to turn the fairy lights on and off automatically.
* Plug the fairy lights into a power strip that can be easily turned off when not in use.