Robust and pretty powerful for their size, they're each a good solid choice for climbers and hillwalkers. The technology allows you to switch directly from full power to modulus power with a memory system that allows you to quickly cycle through the entire light. These two white single power LEDs are the second light that is cycled to when the on/off button is pressed.

The Black Diamond Storm 400's PowerTap Technology enables you to quickly and easily access maximum brightness with the touch of a finger. will definitely recommend this, I have other lighter head torches but I always end up with this one in my pack. There is an indication in the form of a flash whenever you hit fully dim or full bright while dimming any of them. Registration only takes effect after receipt of my confirmation; it is possible to unsubscribe at any time.The two red LEDs are great for night time photography when you don’t want to ruin your night vision, or, perhaps, when you are crammed into an Appalachian Trail community trail hut and don’t want to disturb fellow hikers. But this rugged model has a lot more potential than that, with a balance of brightness and burn time that'd make it equall. Aesthetics aside, it’s a comparatively compact number when sat beside my partner’s STORM model, and its housing does look rather less robust. I was skeptical of Black Diamond’s claims that this torch’s battery could hold up for 4 hours at maximum output with a 1 hour reserve for low intensity activities, but observing the battery meter after a good couple of hours of scrambling and rigging abseils in the dark, I’d say this is actually pretty accurate. The Storm 400 is a burly fully waterproof and dustproof headlamp build for any adventure or weather you can throw at it.

The fact that it has a very bright lamp I can dim to any setting, and then have full bright with a touch, is a very helpful function.

A powerful 400 lumens LED with PowerTap Technology provides quick transition between full and dimmed modes for variable lighting on the go. All three can be turned up brighter than almost anyone would ever need and you can only have one color on at any one time. Being rated IP67 waterproof, which essentially means the SPOT 400-R can survive submersion of 1m for 30 minutes, is initially an added reassurance that you won’t be in the dark in the event of a downpour.

And for the best of both worlds, tap the housing to activate both the wide angle and the long distance LEDs at once.

I also tend to do my own repairs and these lights have come in handy for that as well on many occasions. There are certainly brighter options out there, but they are likely to be larger and more expensive.