Using these pendant lights is simple. First, make sure you have a licensed electrician install them following the instructions in the box. Since the globe is not included, you'll need to purchase a 1xE27 bulb with a maximum wattage of 60W. These lights are designed for indoor use only, so don't install them outside. For maintenance, simply wipe the stainless - steel body with a soft, dry cloth to keep it looking new. If you encounter any issues within the first year, you're covered by the replacement warranty.