he Ubiquiti EdgePower 54v 150W DC (EP-54V-150W-DC) is a secondary PSU for the EdgePower. When combined with the Edgepower EP-54V-150W this DC-DC module will act as a UPS module allowing controlled charging and discharging of connected batteries, ensuring a seamless transition should you loose mains power, making sure your network stays unaffected. The 150W-DC can also be used as a secondary PSU pushing the total power delivered by the EdgePower to 300W.