Features and Benefits:1050 LumensRechargeable with two Lithium Ion battery packs includedPure Beam Focusing Technology via slide focusWill also run on 4 AAA Batteries (included)High/Low settings with beam lockThe HP10R brings over 1000 lumens of rechargeable power to a Pure Beam Focusing LED flashlight. Equipped with the Pure Beam Focusing Optic and Slide Focus, users can shift between a super wide flood beam or spot mode with transition halo at varying distances and brightness all controllable with one hand. For those looking for tactical features, this light includes a strobe in between the high and low light modes. The Beam Lock System also ensures that users keep the beam in place while they work without risk of losing the perfect lighting. With Coast's Flex Charge Dual Power system, this light harnesses either lithium or alkaline power and using a micro USB. A USB insert on the battery and tail cap allows for the recharging of the batteries either inside or outside of the light. The rechargeable battery pack also features a charging port that allows for the external charging of devices that standard USB inserts. With Coast’s commitment to quality, the HP10R Flashlight is impact resistant, weather resistant and its LED is virtually unbreakable. The HP10R Flashlight is backed by Coast’s lifetime warranty against defects in materials and workmanship. Tested and rated to ANSI/FL1 standards.