Using the Groa 34 pendant is easy. First, find a suitable place to hang it. You'll need to buy a compatible E27 bulb separately and screw it into the socket. Then, connect it to a 230 - volt power source. Remember, the bulb is not included, so pick one that matches your style. When it comes to safety, since it's Class 2 (Double isolated), it's relatively safe to use. But always make sure the power is off when handling the pendant. For maintenance, use a soft, dry cloth to clean the wooden and metal parts. Avoid using harsh chemicals as they may damage the materials. Also, the cable cannot be replaced, so handle it gently to prevent any damage.