Yes, you can use a UPS to run the Classcloud. If you think there is a lot of power cut or fluctuations in your region we strongly recommend that you run the Classcloud on a UPS. You have to ensure that the (desired) output is 12 volts.
Recommended UPS for Classcloud:
3.APC Back UPS
If you want to know more info you can connect with our customer support team at firstname.lastname@example.org