Higher Energy Conversion Rate - Covered by monocrystalline silicon solar cells, the solar panel adopts multi-layered cell technology to generate energy from the sunlight and perform better with higher conversion efficiency that up to 23.4% than other conventional panels. Great Portability - An innovative foldable design delivers easy storage and operation Easy Setup & Kickstand Included - The SP420 features 4 kickstands that can be placed firmly on any surface ground. With just a few seconds of setup, you can start soaking energy from the sun for your FOSSiBOT power station. Durable & Splash-Proof - The ETFE-laminated case is durable enough to extend the lifespan of the solar panel. It is IP67 water-resistant that will protect from water splashing (Do not place it under the rain, or to soak in water). The zippers on the pocket can hold the power cords, and cover the power port. MC4 Connector - Works with most third-party devices.