Flexible Solar Panel Kit 4 x 400W Overview This flexible monocrystalline solar panel kit is designed for portable power needs on curved or irregular surfaces. The kit combines thin, lightweight panels with a 40A controller and MC4 connector compatibility to provide a practical off grid charging solution for camping, RV use, marine applications, and remote power. Key benefits conversion efficiency: Panel conversion efficiency of 21 to 23 percent increases energy yield from available sunlight. Standard test conditions AM 1.5, irradiance 1000 W per square meter. Lightweight and thin: Panels use advanced PET materials and a TPT backplane for improved heat dissipation, water resistance, and easy cleaning. Each panel is ultra thin at 3 mm and much lighter than traditional glass modules, simplifying transport and installation. Flexible and adaptable: Panels can bend to a maximum arc of 30 degrees, allowing mounting on curved roofs and irregular surfaces such as RVs, boats, trailers, and curved vehicle roofs. Durable construction: Designed to handle outdoor conditions, panels have been tested for wind and snow loads to maintain performance and compatibility with multiple mounting surfaces. Ready to connect: Includes MC4 connector and a 40A controller in the packing list for straightforward installation and system integration. Technical specifications Configuration: 4 x 400W Product name: Flexible Solar Panel Panel size: 1060 x 277 x 3 mm (41.7 x 10.9 x 0.11 inches) Solar cell type: Monocrystalline silicon Open circuit voltage VOC: 18 V Maximum power voltage VMPP: 15 V Short circuit current ISC: 5 A Maximum power current IMPP: 4.6 A Connector type: MC4 Standard test conditions: AM = 1.5, Irradiance = 1000 W per square meter Conversion efficiency: 21 to 23 percent Packing list Solar panels 40A controller Other accessories User manual Practical use scenarios Camping and off grid weekend trips: Mount panels on a camper roof or lay them on the ground to recharge batteries for lighting, refrigeration, and device charging. Marine and boat applications: Conformable panels fit curved cabin roofs and arch structures to provide supplemental power for onboard systems. Mobile work vehicles and trailers: Flexible panels install on curved surfaces of trucks, service vans, and trailers to maintain battery charge for tools and equipment. Installation and compatibility Flexible design allows mounting on curved or uneven surfaces. Use appropriate adhesives or mechanical fasteners suitable for the surface material. MC4 connectors enable easy connection to compatible charge controllers and power systems. A 40A controller is included for immediate setup. Follow the user manual for wiring, placement for sun exposure, and recommended system configurations. Important use notes The product is a flexible plate with limited bending tolerance. Avoid impact from sharp objects. The panel has water resistance for typical outdoor exposure but should not remain in prolonged contact with standing water. A protective film is applied to the panel surface. Remove the protective film before use to achieve rated performance. If you have questions during installation or operation, refer to the user manual or contact the seller. This flexible solar panel kit provides a portable, adaptable power source for a range of outdoor and mobile applications while keeping installation and transport simple.