At Sunstore we are often asked about how the solar charge controller load output terminal should be used.
The load output on the charge controllers is ideal for putting small lighting circuits on in sheds, garages and outbuildings. We have a similar system set up in one of our workshops powering 3 LED bulbs, this gives us plenty of light for product testing etc. It is possible to put small pumps or motors on to the load output, but you should make sure that the maximum load does not exceed the rating of the charge controller otherwise it will trip the controller on board electronic fuse.
If you are installing your solar kit in a Motorhome or Caravan it is unlikely that you will need to use the load output on the charge controller as your load will be running from the existing system within your Motorhome or Caravan. We do not recommend using this function to power the van as it can be problematic and cause all manner of other issues.