Using this Camco power adapter is easy. First, find the 30 - amp marine power pedestal. Connect the 30 - amp male locking end of the adapter to it. Make sure to screw the threaded locking ring tightly for a weatherproof seal. Then, plug your common tools, radio, lights, or blender into the 15 - amp female end. Remember, this adapter is rated for 125 volts, so don't use appliances that require higher voltage. When not in use, store it in a dry place. Wipe it with a dry cloth if it gets dirty. Avoid bending the cord too much to keep it in good condition.