Using this pendant light is easy. First, find a suitable indoor location for it. Remember, it's only for indoor use. Since it must be installed by a licensed electrician, let the professional handle the installation according to the instructions in the box. When it comes to using the light, just plug it into a 220 - 240V power source. The E27 lamp holder can accommodate bulbs up to 72W, but you'll need to buy the globe separately. As for maintenance, regularly check the 3000mm PVC cable for any signs of wear. If there are any issues within the 1 - year warranty period, you can get a replacement. Also, avoid using it in a humid environment to ensure its long - term performance. And always be on guard against similar but inferior products in the market.