The Fenix TK11 Tactical Flashlight features a powerful, solid, durable, and waterproof design intended for rugged outdoor and military use. It's as solid as a tank, with a large smooth reflector that provides a fine spotlight and long throw distance. The Fenix TK11 Flashlight can use either two CR123A batteries (primary or li-ion) or one rechargeable 18650 battery with a protective circuit, and it maintains excellent constant brightness with two digitally regulated output modes: General mode, which can last for a whole night and can be used for general illumination, and Turbo mode, which can be used whenever high-powered light is needed - search and rescue, long-range target identification, etc. The anti-reverse protection circuit protects against incorrect battery installation. The Fenix TK11 Flashlight features Cree's R5 LED, which boasts better efficiency for higher output per mode.
Note: Batteries not included; sold separately.