During the day the sun charge the rechargeable batteries inside the solar panel (like a bee :)) that's why we called ourselves PowerBee .
When dusk falls the charge stored in the batteries power the lights.
In the morning the lights turn off automatically and charge up again ready for the night ahead.
Our Wall Light is fully automatic so you don't need to turn it on and off each night, but you can operate them manually if you like.
You may have to change the batteries every year or so but to be honest sometimes batteries can last for years