Manual Crank Generator 20W 28V Overview This compact manual generator produces up to about 20W of power with a direct terminal voltage up to about 28V. Designed for reliable handcrank operation, it is suited to outdoor use, classroom demonstrations, DIY electronics, and temporary offgrid needs for lowpower devices. Key benefits Ondemand power generation: Handcrank to produce electricity immediately without batteries or external power. Compact and durable: Metal housing protects internal components from water splashes, shocks, and salt fog for reliable outdoor performance. Easy to operate and maintain: Simple mechanical design reduces upkeep; wipe clean with a soft cloth to maintain performance. Stable and efficient rotation: quality shaft core supports smooth cranking and improved conversion efficiency. Secure placement: Nonslip feet keep the unit stable on flat surfaces during operation. Comfortable handling: Ergonomic handle enables easier cranking and steadier power output. Performance and compatibility Maximum power: about 20W Maximum direct output voltage: approx. 28V Noload output voltage and approximate current: 3V / 6.6A, 5V / 4A, 6V / 3.3A, 9V / 2.2A, 12V / 1.6A, 15V / 1.3A Operation mode: manual handcrank Suitable for lowconsumption devices such as radios, small lights, DIY electronic kits, and portable equipment Note: This product is not intended as a primary household power source. Actual current and compatibility depend on the connected device capacity. Design and materials Color: Blue Material: Metal Style: Modern Shape: Rectangular Mount type: Freestanding Assembly required: Yes Durable metal shell for extended outdoor use, including altitude and low temperature conditions Dimensions and weight Product size: 12.7 x 8.6 x 8.8 cm Package size: 19 x 10 x 12 cm Gross weight: 0.82 kg What is included 1 x Manual Crank Generator 1 x Handle Practical use scenarios Camping and emergencies: Provide temporary power for small lights, radios, and charging lowpower devices when other sources are not available. Education and demonstrations: Show energy conversion and electrical principles in science classes or workshops using a handson, visible power source. DIY electronics and field testing: Power small prototypes, sensor modules, and hobby circuits during outdoor projects or remote troubleshooting. Notes on operation Multiple output ports including a direct terminal support a range of voltages for various small devices. Crank speed and connected load affect actual voltage and current. Use within the stated limits to avoid overloading. Clean and inspect the unit periodically to keep mechanical parts moving and to preserve conversion efficiency.