The S15 is pretty decent for clipping to a cap brim, although it does stick out forward a good bit. For extended hands free duty, I find a dedicated headlamp is ideal. One of the best values on that is the Thrunite TH20. It isn't massively bright topping out at 250 lumens on NiMH AA, but will go to 520 lumens on a 14500. It is a ramping light, no steps. But it ramps at a decent speed. Terrific build quality. And nice that it can take AA or 14500.