The Furrion charge controller has MPPT (Maximum Power Point Technology) built in which produces up to 25% more charge than PWM (pulse width modulation) controllers. It's rated for 300-watt solar panels and has auto-charge intelligence to switch charging modes as the battery charges to help extend battery life.
It's in like-new condition, and works perfectly. I only replaced it with a Victron unit that interfaced with my other Victron components. A good inexpensive controller for setting up solar panes on your van, RV or anywhere.