With the increase of mental and physical fatigue at the end of a long running unit, it will be able to recognise the important unevenness of the surface early and clear to prevent bending, tripping and slipping. I stopped multiple times and eventually and incrementally tightened enough over the course of the downhill that I had a headache by the end, yet the battery still bounced. If it’s on full power (600 lumens) it is reported to last 10hrs, on medium power 15hours and on the lowest power 120hours. There is a flood and spot adjustment activated by a twist on the torch housing itself and the mid setting would, for the most part be adequate for the majority of my local trails and woods.

On “spot” focus, the light doesn’t have a wide enough beam to see things in the near foreground, so it’s much less useful for running. Registration only takes effect after receipt of my confirmation; it is possible to unsubscribe at any time.Battery pack at the back is a bit bulky (to be expected if you need a really long battery life) but, surprisingly, not really noticeable or obstructive during a run. Whether you are going cross-country, uphill or downhill, the NEO10R is the perfect guide for trails and ultra runs. It’s definitely not a great fit with the battery on the head—the design is inelegant and the build quality is just ok. A combination of wide angle and spot modes like some lights have (this would require a different design) would have been preferable. This function comes in handy when tackling technical trails at night or trying to find something in a drop bag during a race.

I received the NEO10R, a simple, bright, large rear battery headlight with multiple wearing options. After about two miles in and adjusting the light about three times, I hardly noticed it was there except for the 650 lumens lighting up the trail.The highlight of the NEO10R headtorch is the focusable beam, which allows you to refine the breadth and reach distance of the unit's output. However, according to the manual Mode 1 is 600 lumens, mode 2 = 250 lumens and then mode 3 = 10 lumens. This warmer hue helps make it easier to “interpret” shadows when running in technical terrain and gives a more natural look. A light that keeps you safe by illuminating the darkest of corners at work or helps you to extend the day, so you can enjoy your passions and hobbies for longer.

In the box comes the torch, a rechargeable battery, a chest strap, an extension cable for those that don’t want to wear on their head, a charging USB cable and instructions. I like the fact that there is still an hour left of light in the torch when you get the first low battery warning. The low battery warning prevents you from running out of battery without knowing it - making sure you won't be left in the dark.In fact it is almost too bright to use on roads and IMHO is best suited on trails and in the mountains. One thing to note here is that I prefer the battery pack in a “horizontal position” instead of the “vertical position” as intended by Ledlenser.