Using the Defender Arctic Extension Lead is easy. First, make sure the power source and your power tool or lighting device are turned off. Then, connect the 32A coupler to the power source and the 32A socket to your device. Once everything is connected, you can turn on the power. Remember, don't exceed 20A when using this extension lead to avoid any safety issues. As for maintenance, keep the cable clean and dry. If it gets dirty, you can wipe it with a dry cloth. Check the cable regularly for any signs of damage, like cuts or frays. If you notice any problems, stop using the lead immediately and replace it. This lead can be used all year round, but in extremely cold weather, it's a good idea to let it warm up a bit before use to ensure optimal performance.