When you want the freedom to park your caravan anywhere and still have the power to the micro-oven and the refrigerator, without having to recharge with noisy and smelly generator/engine.
Then you must have SpectraLeisure on your caravan. Nothing needs to be connected to or booted up. The solar work all the time, even when you are underway.
SpectraLeisure is especially developed for caravans, with smooth edges and nice mounting solutions in the package
If you really want complete freedom and high safety year round, so you should combine SpectraLeisure with a Rutland wind charger.