Look man, your already willing to pay up to $50 for a light, why not another $40 for a truly bright light? Then you would not be later wishing for a brighter light. You can find that easily with this
http://www.cygolite.com/products/hal...over_Xtra.html Just do a web search for best price.
Or this for about $15 dollars less then the above but not as bright:
http://www.cygolite.com/products/hal...over_NiMH.html