This is a neat idea to vary the light output based on the angle you hold the torch and a very good price. Marked down because the batteries rattle slightly which is annoying for something that is otherwise such a pleasure to hold.

Nice flashlight with the novelty of the sens feature.

I ordered two of these at a discount price. One was faulty and I sent it back to Flashaholics. I had a working replacement and a refund for my postage in 5 days. Brilliant service. This is a great torch and I'm sorry Nitecore does not seem to be persisting with the Sens range. I suspect there may be quality control or reliability problems with the automatic dimming mechanism. I have the single AA version of this (a twisty) and it still works fine after some years, but the three luminosity levels aren't ideal for night walking. With the AA2 version you get a tail-switch and the outputs are just right: 20 lm is good for seeing what's underfoot; 50 lm is ideal for picking out the way a few metres ahead; and 170 lm is great for checking into the distance. AA batteries make it easily compatible with other kit, and you get a very neat, hand-friendly forch with enough light for not too much weight. I doubt if the automatic dimming really extends runtimes by a factor of 5-8, as claimed, but it certainly protects the batteries a fair bit.