I don't know if you would call this a floody light, and I don't even know if I'm qualified to describe lights at all. I bought
this light recently and mounted it to my handlebar. I only used it at night once on a short ride, where there was street lighting. I think it works well, and I think I could use it on an unlit road, though I don't know fast it would let me go. It's only $36, and it uses two CR123 cells. Are two of those cells like a single 18650 cell?
Tom