Introducing the Nightstick TAC-510XL: A compact and rechargeable, multi-functional tactical flashlight made from a durable glass-filled nylon polymer. This flashlight features an Xtreme Lumens Cree LED, rated at a powerful 800 lumens. Working in harmony with the LED is a high-efficiency deep parabolic reflector, that ensures a usable beam with a range of up to 205 meters. The customizable tail-cap switch offers both momentary or constant-on functionality, accommodating to your specific needs. Choose between high, medium, or low-brightness settings, and also utilize the disorienting strobe function for added versatility. The power is supplied by a rechargeable Lithium-ion battery, but this device also has the capacity to run on a pair of CR-123 batteries, thanks to the included CR-123 Battery Carrier (Note: CR-123 batteries are not included).