Introducing the HP7 Tail Cap, a revolutionary new product from HP that will revolutionize the way you use your flashlight. With its innovative design and advanced features, this tail cap is perfect for anyone who wants to get more out of their flashlight. The HP7 Tail Cap is designed with an easy-to-use thumb switch that gives you access to three brightness levels – low, medium and high – so you can adjust the light output according to your needs. It also has a power indicator light so you can always know when it's time to recharge or replace batteries. Plus, it's waterproof up to 30 feet deep so you don't have to worry about getting caught in the rain or accidentally dropping your flashlight into water.