Hand-Crank Flashlight
Assemble your own hand-crank flashlight, great for outdoor adventures, emergencies, or just battery-free fun. Follow the hands-on experiments in the instruction set to learn how capacitors, stepper motors, and diodes work. This electronics building kit for teens is recommended for ages 12+.
Additional details
From the desk of the product designer:
Behind the design
“This circuit is a great way to experiment with electronic components like resistors, diodes, and capacitors. Plus, you get to use what you learn to make a brilliant flashlight!”
- KiwiCo Product Designer
By the numbers
6
Motor prototypes that survived kid testing
1
Motor's gear ratio
11
Flashlight designs
Reviews
4.7
21 reviews
Customer images

Lea
01/17/2022
My dad & I are on the older end of customers (20+yrs) but our 1st time building electronics went great thanks to the well detailed packaging & instructions! The science explanations, history, & drawings were implemented in a fun way too :) I only ran into 1 issue where it was hard to tell which blue wire had the black stripe, so I checked the other wires & noticed the ones without a stripe had numbers so I used that as an indicator.

Kim
12/26/2021
Wonderful item and useful.

JR
08/21/2021
Gave this to my 11 year old grandson for his birthday. He loved it!

Brian
06/24/2021
One of my son’s favorite projects! And very functional - he takes it with him to bed. Lesson plan was at the right level to keep him interested.

patricia
03/03/2021
I would say it was hard but it is really cool. I find lego parts with it. The writing was hard. But we finally got it.

bobbi
09/10/2020
The life of this toy wasnt very long maybe three months with moderate use but my kid enjoyed it together
Added