RV owners, if your power converter is on the fritz, this might be your fix. This is a direct replacement unit for the WF-8955 and Parallax 7155 converter models (it also replaces the 7145 and 7155 power centers). It's a 55-amp, three-stage converter/charger. What does that mean? When you're plugged into shore power (AC), this box converts that to DC power to run your RV's 12-volt lights, fans, etc., AND it smartly charges your RV's battery(s). The 'three-stage' charging (bulk, absorption, float) is better for your battery's health and longevity compared to older chargers. It's designed as a main board assembly replacement, so it should drop right into the existing space in your RV's power center. This is a critical component for keeping your lights on and your batteries topped up when you're connected to an outlet. If you're experiencing electrical issues, a failing converter is a common culprit. This unit aims to get you back up and running.