This efficient and foldable solar panel allows you to charge DELTA and RIVER series portable power stations via MC4 to XT60 cable. Compared to other solar panels, this one allows you to string solar panels together with parallel cable to give you enough power for your work station. (4x110W Solar Panels in parallel for DELTA, 2x110W Solar Panels in parallel for RIVER) The solar panel is dust and waterproof to withstand all weather conditions, ideal for outdoor activities.