I have a Bosch cordless drill, which runs off a 14.4V battery. I also have the work light that goes along with it. I want to convert it to probably a neutral white xp-g. Can you recommend what buck converter I might be able to use to drop the voltage down so that I don't fry the xp-g? I'd go for longer runtime over a brightness. I've searched around a bit, but I'm confused. Thanks in advance.