These Fuel Cell Open-Cathode Stacks / Systems are proprietary air-cooled self-humidifying stacks /systems that include fuel cell stack, fan, electronic control board, and solenoid valve. Main Features: Lightweight and compact, making it easy to install and move; Silent and simple design with high reliability; Fast startup speed and short response time, making it suitable for various application environments; Excellent environmental adaptability, capable of handling all types of weather changes; Simple control strategies, making it easy to integrate into diverse application systems; Applications: Drones mobile backup power 2-wheelers or other small transportation tools forklift Main specifications: Please let us know if you have any questions or want it differently at [email protected].