Nebra Indoor Hotspots are provided with Power adapters. You can also power them through Power over Ethernet ( PoE ) which you would need to purchase separately :  PoE Injector and PoE splitter

https://helium.nebra.com/indoor-hotspot/indoor-faq



Nebra outdoor Hotspots support PoE and can be powered with an Ethernet cable ( requires PoE capable router or PoE Injector ). The Nebra outdoor Hotspots are also capable of being powered with a barrel power supply which would need to be purchased separately. 


https://helium.nebra.com/outdoor-hotspot/outdoor-faq


Nebra FAQ