Yes. The 12V Power Supply can be used to power the 12V pump and the 12V battery adapter.
How to power your Joolca pump with the 12V Power Supply?
You can run the Joolca pump on 240.0V (120.0V) power (e.g., plug the power supply into your wall socket at home) by using the Joolca 12V Power Supply.
Click here for more information on the 12V Power Supply.
How to power your HOTTAP 12V Power Adapter with the 12V Power Supply?
You can power the HOTTAP 12V Power Adapter with your home wall socket by using the Joolca 12V Power Supply.