Specifically designed for Winnebago RV's that come with a charge controller on-board and wired to the external sidewall port. If this is the suitcase our 140-Watt unregulated portable solar kit will be perfect. This portable system does not include a charge controller. It plugs directly into the Winnebago factory-installed sidewall port. This medium sized universal portable solar kit will generate 140 watts at 7.8 amps. If you have questions about your RV contact us.