Genius Factory Deluxe Hand Crank DC Generator 15V with High Low Output Switch for STEM

Features a Low and High Output switch which can be used to limit power to prevent breakage of LED or light bulbs. High Strength POM Gears for smoothness and reliability. Manufactured by Genius Factory. DC power output that can be used as a substitute for batteries. Easy to use connection clips Clear plastic housing and 36 long leads. 12 years and up. Hand cranked DC generator can be used for any experiments up to 15 volts DC.