Just switch from the stock Mag krypton bulb to the Mag Xenon bulb. It's cheap, and makes it brighter and whiter. Also, depending on what size Mag you have, try using a bulb designed for 1 cell fewer than the Mag you have (overdrive it). The bulb life will be shorter, but it's cheap and effective. If you have a 2-cell, however, I'm not sure what type/voltage bulb to use. A 3-cell using a 2-cell bulb may pop the bulb, but it's worth a try. Overdriving works better with the bigger (more batteries) Mags. I've used a 3-cell bulb in a 4-cell Mag, and it's pretty bright. Good luck.