This is a hand crank flashlight made of a stepping motor.Turning crank, the super capacitor is charging and LEDs are ligting. Materials : Stepping motor with
Hand Crank Generator IKEA Hack
How to Make a Homemade Flashlight: 15 Steps (with Pictures)
Electronic Projects
How To Make a Hand Crank Flashlight
21+ Easy Camping Tent Light Ideas to Brighten Up Your Campsite
How to Make a Handcrank Flashlight at Home
How long do shake flashlights last? - Quora
How to make a self - Powered Hand Crank Flashlight
Power your Arduino/AVR with a Hand-Cranked Battery using ATmega8 microcontroller
Homemade hand crank flashlight
How does a homemade hand crank flashlight work? - Quora