Magnet mount lights abound on Amazoo, and most other sellers sites. I look for an LED, and so far I've gotten 3 different ones for different uses, and ALL of them have kicked battery operated cell stuff to the curb.
Currently I have a large 18" Rikon, I'm planning to keep, it resaws well enough for me. I also have a HF 14" Delta clone, and it is paid for, works great, but for just curves, it's a bit LARGE. I've thought of a 10", and when I look, the Rikon keeps winning, but spending $ on tools I ain't using is silly, so my health pattern needs a change before $$$$ is spent.