In reply to An Triubhas:
We have three of these, probably the earlier version, and they are great as general camping lights. OK for walking back to the car from the crag type of thing. I bought them in a sale because they cost more or less the price of the batteries that were included (and because the female components of my family are world class at losing things).
However, they would be inadequate for serious use, which includes descending from mountain summits, ski touring at night, foggy whiteout conditions in the dark, caving, night orienteering, and so on.