Using your Notti pendant is a breeze. First, find a suitable place in your room to hang it up. Since the cable can't be replaced, make sure the 200 - cm cable length meets your needs. Next, screw in a compatible E27 bulb (you'll need to buy one as it's not included), and don't exceed the 40 - watt maximum. When using, be aware that it has a 230 - volt voltage and is class 2 (double - isolated).
As for maintenance, keep it away from water because its IP classification is IP20, which means it's not waterproof. Wipe it gently with a dry cloth to keep the metal looking good. If you have any issues with the pendant, check the socket and the connection of the cable to the power source.