The Edge of Night.

The article presents information on the improved headlamps for runners, hikers and mountain bikers. These headlamps are illuminated by light emitting diodes (LED). With the improvement in the LED technology, the options of choosing a headlamp has increased. According to Jon Rockefeller, the sport division manager at Petzl, a leading headlamp maker, users can now choose the width of the beam, shining, and light intensity of their headlamps.