Using this Marvel 3D wall light is a breeze. First, gather 3 AA batteries as they aren't included with the product. Then, open the battery compartment and insert the batteries according to the polarity markings. Next, use the provided fittings to hang the light on your wall. Just follow the instructions that come with it, and you'll have it up in no time. When it comes to safety, always make sure the batteries are inserted correctly to avoid any short - circuits. Don't leave the light on for extended periods without supervision. For maintenance, simply wipe the light with a dry cloth to keep it clean. If you need to replace the batteries, turn off the light first and follow the same steps as installation. Enjoy your awesome Hulk - themed wall decor!