Handheld Manual Electricity DC Crank Generator Model Miniature Light Bulb Kit Science Experiment Kid Specification: Material: ABS Material Color: Blue-Transparent No-Load Output Voltage: 6.3V Output Current: 0.2A Storage Method: Well-ventilated, dry, indoor temperature preservation Light Bulb Replacement: 6.3V, 0.3A Miniature Light Bulb Note: Please don't overexert to avoid damage to the gears; 2 rounds per second is recommended. Features: - Amazing handheld electricity generator: Create power without batteries. Great for classroom physics teaching demonstrations. - Simply turn the handle, and the generated electricity makes the bulb bright. The faster you turn the handle, the more power you generate. - 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. Unscrew the miniature light bulb; it can be used with almost any experiment requiring up to 6.3 volts DC. - This science kit is perfect for demonstrating the transformation of energy from mechanical to electrical. Package Included: 1 x Handheld Electricity Generator Kit