Using this cable is easy. Just plug it into your instrument and the amplifier or other device. Before you use it in a dark setting, like on stage at night, put it in natural light or sunlight for a few hours. This will charge it up so it glows brightly for 2 - 3 hours. When you're done using it, don't pull on the cable too hard to unplug it. Instead, hold the connector and gently remove it. To keep the cable in good shape, avoid bending it sharply or stepping on it. Store it in a cool, dry place when not in use. If it gets dirty, you can wipe it with a soft, dry cloth.