The LED LENSER® P5 is small, lightweight, an energy-saving marvel and at the same time a giant of brightness. It is operated with only one Mignon (AA) battery. Each nanosecond, the built-in DC/DC converter pumps energy through the high-performance LED (Cree, 3 watt). The result is quite impressive and exceeds the light output of (conventional) electric torches that weigh more than ten times as much. The focussing system (Advanced Focus System) is as convincing as the one-hand operation mechanism (Speed Focus).