How to Hack a Hand Cranked Flashlight for Emergency Power?

Answer A free source of emergency power - a hand cranked flashlight. These are the flashlights that don't require batteries. You just crank the handle to generate electricity and it lights three bright LE... Read More »

Top Q&A For: How to Hack a Hand Cranked Flashlight for Emerg...

How to Do a $10 Police Flashlight Hack?

Here is how to make a powerful flash light for under $10.

How to Hack a Cheap, High Performance Flashlight?

Most "flashaholics" have seen the flashlight hacking articles that feature a 2-AA industrial flashlight modified to accept CR-123 lithium cells. New 14500 lithium ion rechargeable cells are availab... Read More »

How to See Blood Veins in Your Hand With a Flashlight?

This is a pretty cool trick. See your veins through your hands!

Can a flashlight run on solar power?

A number of manufacturers make solar-powered flashlights. Solar flashlights come in a variety of styles and sizes, including key-chain solar flashlights and larger units that include radios and cel... Read More »