Penetrate the blackest night with our top headtorches for hillwalking and wild camping, the perfect companions for adventures ...

Physicists have created the tiniest light-emitting diode (LED) displays ever 1. The image above was shown on a monochromatic display with pixels less than 100 micrometres across, about the width ...

A CLEVER iPhone trick lets you change the shape of the beam of light from its built-in torch. Gadget fans have spotted the handy feature, which has only been out for a few months. You can use this ...

LEDs were once little more than weedy little indicators with low light output ... It allows the torch to be more compact without requiring a huge heatsink to keep the LED at an acceptable temperature.