Never used the wind up ones, I have always used the LED headlamps, last for ages on one set of batteries, and I converted part of it to run on red leds to reduce glare on the water. I also find the little ones you clip onto the peak of a baseball cap great as they are so light, got some from the pound shop in town and the batteries last 100 hours, and they do not have the strap around the head that can be annoying.