Using these LED fairy string lights is a breeze. First, make sure the on/off switch is in the 'off' position. Then, open the clear battery box and insert the 2 included CR2032 batteries. Once the batteries are in place, close the box. Now, you can turn the switch to 'on' and watch the lights glow. These lights are great for various events like weddings and parties. Hang them up as a backdrop or use them to decorate a stage. When it comes to maintenance, if the lights stop working, check the batteries. Replace them with new CR2032 batteries if needed. Remember, the battery pack is not waterproof, so keep the lights away from water. One order only includes the lights, so if you want additional decorations, you'll need to get them separately.