The Way-Go Torch is a flashlight, but it’s also much more — a GPS, a compass, and a tour guide. The Way-Go Torch is a flashlight, but it’s also much more — a GPS, a compass, and a tour guide. is ...

With this circuit, any type of LED can be driven from a single-cell supply in the range of 1.0 to 1.5 V (see the figure). As a result, it can be used with alkaline, carbon-zinc, NiCd, or NiMH cells ...

Many of us store a flashlight around the house for use in emergency situations. Usually, regular alkaline batteries are fine for this task, as they’ll last a good few years, and you remember to swap ...

The flashlight fish uses bioluminescent light to detect and feed on its planktonic prey, according to a new study. The flashlight fish uses bioluminescent light to detect and feed on its planktonic ...

The Clearwater Andie 800 lumen LED flashlight is another stunner. It’s so powerful, it makes the original Andie LED flashlight seem weak — and that’s saying something! The original Clearwater “Andie” ...

A 15-year-old high school student by the name of Ann Makosinski has invented a flashlight that draws power from the heat generated from the palms of your hands. Dubbed the "hollow flashlight," it uses ...

The flashlight fish uses bioluminescent light to detect and feed on its planktonic prey, according to a study published February 8, 2017 in the open-access journal PLOS ONE by Jens Hellinger from Ruhr ...