Both Home Depot & Harbor Freight sell 12 Volt rechargeable hand lights in the 500,000-1,000,000 candlepower range for $10 to $29. I have a 500,000 one I use when I take my dogs out at night. Throws a beam like a car high beam & run time is about 2 1/2 hours. Down side is they are heavy & a little bulky but not impossible to mount on a bike. Check them out. Don