Using the Gator Cases GTR - PWR - 8 is easy. First, connect your guitar effects pedals to the 8 isolated outputs of the power supply. Then, plug the power supply into a standard electrical outlet. Make sure the power switch is turned on. You'll notice an immediate improvement in the performance of your pedals. When using this power supply, avoid overloading the outputs. Don't connect too many high - power pedals at once. For maintenance, keep the power supply in a dry and cool place. Regularly check the connections to ensure they are secure. If you notice any issues, such as strange noises or power failures, stop using it immediately and contact customer service.