Black Diamond's advanced headtorch, purpose built for climbers likely to find themselves night climbing. It has a well articulated, compact, single button front housing, allowing you to get close to the wall and still see everything around you. The head torch has two main modes optimised for climbing. The primary Climbing Mode, which emits a 300 lumen wide and evenly dispersed beam, for spotting holds in a wide area that might otherwise be invisible. The secondary Route-Finder Mode emits a powerful 375 lumen beam which is narrower than the climbing mode and allows you to see distances of up to 85m for spotting anchors or far off landscape features. Like most of Black Diamond's other torches, the Onsight is Dual-Fuel compatible and can be powered with three standard AAA batteries, or the BD 1800 Li-Ion rechargeable battery, which is sold separately. On top of all this, the Onsight is also IP67 waterproof and dustproof leaving it unfazed if worn out in the rain or wet.