Sorandy Hand Crank Generator Hand Crank Driven Electricity Generator Mechanical Emergency Power Supply Flashlight for Outdoor Emergency

描述

⚡ Crank your power, own your emergency ⚡

The Sorandy Hand Crank Generator is a compact, battery-free power source delivering up to 6.3 volts DC through manual cranking. Its transparent casing offers a unique educational view of mechanical-to-electrical energy conversion, making it perfect for emergency use, outdoor adventures, and science demonstrations.