So I've been running a Manker E03 for about a year now, and the switch is starting to fart out on me. That means I get to start shopping for a new lamp! I very curious to hear what you all are using out in the woods. Use case is going to everything from winter shovelling to SAR work and summer camping. I'm not married to any brand, but definitely need it to be completely weatherproof, and I'd prefer if it ran on 18650's so that I only need to carry one type of spare battery. I'd also prioritize run time and comfort well before insane brightness. Help!