Features ​​【Convenient to Use】Simply turn the handle, the electricity generated makes the bulb bright. The faster you turn the handle, the more power you generate. 【Premium Material】Made with a clear plastic casing, students can clearly see the motor, gears and wiring. 【Product Specification】Material: ABS Material;No-Load Output Voltage: 6.3V;Output Current: 0.2A. 【Easy to Use】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 6.3 volts DC. 【Suitable Range】Create power without batteries! This science kit is perfect for demonstrating the energy transformed from mechanical to electrical. Features: 【Convenient to Use】Simply turn the handle, the electricity generated makes the bulb bright. The faster you turn the handle, the more power you generate. 【Easy to Use】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 6.3 volts DC.  【Suitable Range】Create power without batteries! This science kit is perfect for demonstrating the energy transformed from mechanical to electrical. Specifications: Material: ABS Material 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 Weight: 178g(approx.) Package Includes: 1 x Generator Note: Please don't overexert in order to avoid damage of the gears, 2 rounds per second is recommended. Package List