Can you imagine a world without batteries? That’s the question posed by the inventor of Lumen, a flashlight that runs completely on power generated from your own body heat. With several working ...

While your smartphone’s flashlight technically does the job—and is always within reach—its performance pales in comparison to a dedicated flashlight. A pocket flashlight combines the best of both ...

If you’re shopping for a flashlight, you may think looking at how many lumens it puts out is the best way to determine quality or usefulness. It’s an understandable assumption, but that number in ...