It’s always good to have a torch on hand for emergencies ... a series of diodes and charges the supercapacitor, powering the light. It’s a classic design that is available commercially ...

Here is a tried and tested design of an ultra-simple emergency torch built around the inexpensive dc-dc converter ... If R3 is linear then the perceived light intensity will be approximately linearly ...

PALight – emergency torch THE PALight is a palm-size LED torch providing hours of light in an emergency. The torch can be seen up to a mile away and can be used in roadside emergencies ...

If you buy something via one of our links, we may earn a commission. Maggift's Waterproof Flame Solar Torch Light Set, originally $52, is just $26 at Macy's. Each torch has a solar panel that ...

In 2016, I reviewed the Torch 250, a multipurpose light from Goal Zero. The company is known for its portable power and lighting solutions, with rugged build and lots of clever engineering touches.