led dynamo flashlight with radio

video

https://en.wikipedia.org/wiki/Led

https://en.wikipedia.org/wiki/Led_Zeppelin

https://en.wikipedia.org/wiki/LED_lamp

https://en.wikipedia.org/wiki/Led_Zeppelin_II

https://en.wikipedia.org/wiki/Led_Zeppelin_IV

Trailblazer 3-LED Dynamo Hand Crank Flashlight – CH Kadels