If you want something in the brightness range of these other lights but at a fraction of the price look into the strobes at www.allelectronics.com . My equivalent strobe came from Radio Shack, cost $12.00, runs on from 6 to 15+ volts, and has lasted 20 years. I put mine on the top of the rear rack and hook it into the 12 volt headlight supply. A couple of zip ties and a 9 volt battery could put one on my helmet. Like the other lights it hurts to look closely at it and it flashes in a 360 degree circle.