Last summer I took a Home Depot 20W exterior spotlight and used it with a 7Ahr SLA. Good amount of light, even with a 20W halogen with no reflector on the bulb (the housing does have something of a reflector in it). My question is, would a couple of the newer LED lights, be it flashlight or similar, come close to the same light output? I have a hard time believing that something running on a couple of AA's, even if NiMH, is going to come close in light output.
I don't do much riding in the dark, but I'd like to have the option--but I'm loath to spend $$$ to do so. At the same time, I've got a new bike, and would have to figure out how to mount up this light. If I did, I'd be tempted to buy a cheapie LED light for the bracket, and run the battery in a handlebar bag; but OTOH I'm not sure I want that extra weight on the handlebar (it's a heavy battery).
If I could get some new LED lights that ran on rechargables (preferably AA, those will work in my camera too) and gave me an hour or so of run time for $50 or so, that'd be great. I also would prefer to use half-way decent mounts, as I would want the lights to be easy to remove for when I don't need them, or when I'm transporting the bike, etc. My night-time rides are quick 45minute or so rides for stress relief and excersise, not commuting, on lightly traveled and mostly-unlit roads.