Don't let it near water - VISM Pro Series Mod 2 500 Lumen Flashlight

Worked fine around the house for a few months. Fairly lightweight, bright, fits snugly in a 1 inch mlok mount. I take the rifle it's attached to outside once, and it dies after a half hour of light rain. I checked the batteries, cleaned the threads, and metered different parts. The problem is somewhere past the anode (aka in the head) which seemingly cannot be removed. Keep it in the house and I guess it's fine, but I would not recommend.