When space and weight are critical don’t hesitate to pack the lightweight and low profile Ion headlamp from Black Diamond. Weighing in at 30 grams (1 oz) you might forget this headlamp is in your pack that is until you need to use it. The Ion’s pivoting head allows you to angle the LED light and its beam for optimum illumination during any activity. A single replaceable 6-volt battery is all it takes to keep the Ion powered for 15 hours on its low setting and 3 hours on high. Built tough to withstand rain sleet and whatever else you find yourself wondering into (or out of) Black Diamond’s Ion is a great choice for both a backup or go-to headlamp.