❤❤❤Welcome❤❤❤ We are committed to providing customers with better and more favorable products!!! If you have any questions, please feel free to contact us!!! Thank you for your support~ Manual power generation and storage parameters: 30 rpm - motor speed 300 rpm, output: 10.5V 0.8W 0.7A 50 rpm - motor speed 300 rpm, output: 11.8V 11.4W 0.9A 60 rpm - motor speed 300 rpm, output: 12.5V 13.4W 1.2A The package includes: 1x hand crank generator.