If you can't get out bouldering in daylight, but can't see in the dark, then you need some of these.

I bought two torches, four batteries (two spares), a charger and a mini tripod with a clamps for about £45. Granted, I did have to wait about 3-4 weeks for them to turn up from Hong Kong, but for a man on a budget they are ideal. The batteries last about 2hrs on full power and take about 8hrs to charge. Combined, they have the same quoted output as one of those massive Dewalt lamps (2400 lumen), but are a third of the price and fit in my pocket. Ideal.

I came across them when looking for some headtorches for winter MTB, the internets told me to buy some. It was an afterthought to buy the tripod clamps, but I did a good. Bring on winter, up yours GMT!