300W Flexible Foldable Monocrystalline Solar Panel with Controller and USB, 18V Output Why this solar panel matters This 300W flexible, foldable solar panel delivers portable solar power where fixed panels are not practical. It solves common off grid power problems by combining a output monocrystalline photovoltaic array with a builtin controller and a USB charging port. The flexible construction makes it easy to mount on curved surfaces or store when not in use, while the included controller provides an 18V output for straightforward integration with battery systems and 12V appliances. Key benefits Reliable portable power: 300 watts of monocrystalline solar generation for charging batteries and running small loads when mains power is not available. Ready to use: Includes an integrated controller with an 18V output and a USB charging port for direct charging of USB devices. Flexible and foldable: Conforms to curved roofs and reduces storage volume when folded, making transport and installation simpler. Space saving and lightweight: Designed for limited spaces on motorhomes, caravans, vans, sheds, and garages. Durable photovoltaic construction: Monocrystalline cells provide efficient energy conversion in a compact module form factor. Main features and functions Power output: 300W photovoltaic module capable of supporting battery charging and DC loads. Controller included: Builtin controller delivers an 18V output and provides a USB port for charging mobile devices and accessories. Foldable design: Panel folds for compact storage and easier transport. Flexible module: Bends to fit slightly curved surfaces for more mounting options compared with rigid panels. Use cases: Designed for mobile and small fixed installations such as motorhomes, caravans, RVs, vans, sheds, and garages. Compatibility and performance Works with 12V and 24V battery systems when used with appropriate charging connections and the included controller for 18V output. Suitable for integration with common leisure battery setups and DC appliances used in mobile and outbuilding applications. USB port provides a convenient way to charge phones, tablets, and USBpowered accessories directly from solar power. Practical applications Motorhome or caravan road trip: Mount on a roof or lay out when parked to maintain house batteries, power lights, run a small fridge, and charge devices during extended stays. Remote garage or shed: Keep a battery bank topped up to run LED lighting, a small compressor, or power tools and chargers without mains wiring. Van life and day trips: Store folded during travel and deploy for daytime charging of batteries and USB devices while parked or working off grid. What you get 300W flexible foldable monocrystalline photovoltaic panel with integrated controller featuring an 18V output and a USB charging port. Why choose this panel This product combines portability, foldable convenience, and an integrated controller to simplify off grid power. Its flexible monocrystalline module makes it practical for curved vehicle roofs and compact storage, while the included 18V output and USB port reduce the need for extra accessories. Ideal for users who need a reliable, transportable solar solution for motorhomes, caravans, RVs, vans, sheds, and garages.