All U.S. service members aboard the USS Harry S. Truman have been accounted for and are safe after a fighter jet, an F/A-18E ...

Whether you're facing a blackout or off-grid adventure, this compact gadget lets you charge your phone and power a light — no ...

A magnet mounted on a flywheel spins when the handle is squeezed, changing the magnetic flux and generating an EMF that illuminates a light bulb. If you have any questions about the demos or notes you ...

It's smart to have a light source on hand for emergencies, especially since everyday carry flashlights can be had for a ...

[2 LIGHT SOURCES ALWAYS POWERED] The emergency crank radio can also provide light. The 4 LED reading light and 1W flashlight provides enough output to keep you and your loved ones out of the dark ...

This compact $28 hand-crank power generator features a built-in flashlight, USB charging port and solar panel, making it a must-have for blackouts, camping trips, or anytime you’re off the grid.