WaterLily USB connects directly to any device that uses a USB connector.
WaterLily 12V uses SAE connectors. You can purchase a wide variety of SAE adapters that are compatible with WaterLily 12V. You can find more information about SAE connectors here:
Always ensure that if you are using adapters that they have the correct polarity for use with WaterLily. For more information on polarity issues and charging 12V lead-acid batteries please read the following blog post: