Using these 20 LED purple micro fairy string lights is a breeze. First, make sure the batteries (2 x CR2032) are inserted correctly into the clear and small battery box. Then, find a great spot for your lights, like a party backdrop or a wedding arch. Simply turn the on/off switch to start lighting up your space. Remember, these lights are not waterproof, so keep them dry. When the batteries run out after about 48 hours of use, just replace them with new CR2032 batteries. And since this order only includes the fairy lights, you'll need to add your own extra decorations to make it truly special.