Handheld Manual Electricity DC Crank Generator Mini Fan Science Experiment Model KitThe product is shipped based on the color or size of the main image of the product page.Handheld Manual Electricity DC Crank Generator Mini Fan Science Experiment Model KitSpecification:Material: ABS MaterialNo-Load Max. Output Voltage: 5VMax. Output Current: 0.2AStorage Method: Well-ventilated, dry, indoor temperature preservation Note: Please dont overexert in order to avoid damage of the geers, 2 rounds per second is recommended. Features:- Handheld electricity generator can create power without batteries- Simply shake the handle, make the fan rotates and also create a DC electricity which can be connectted to electrical circuits via binding posts.- Made with a clear plastic casing, students can clearly see the motor, gears and wiring.- This grip style handle generator allows connection to electrical circuits. Screw out the miniature light bulb, can be used with almost any experiment requiring up to 5 volts DC. - This science kit is perfect for demonstrating the energy transformed from mechanical to electrical.Package Included:1 x Handheld Crank Generator Fan Kit