Using your Bradley Zen Series touchless sensor faucet is easy. Just wave your hand in front of the sensor, and the water will flow. There are multiple low - flow settings, so you can choose the one that suits you best. When it comes to power, you can use the standard battery pack with 4xAA alkaline batteries. Or, if you prefer, you can use the optional AC plug - in adapter, which also has a battery backup in case of power outages. Keep an eye on the indicator lights in the spout. They'll tell you if the faucet is powered, when it's activated, and if the battery is running low. For maintenance, since the PVD finish is very durable, you can simply wipe it with a soft cloth to keep it looking good. Don't use abrasive cleaners as they might damage the finish. Also, follow all ADA and safety guidelines when installing and using the faucet to ensure proper and safe operation.