A built-in rechargeable battery and improved performance are what make the black E35R EDC Flashlight from Fenix unique. This small flashlight has a length of just 4.7" and is able to blast a maximum 3100 lumens. Six brightness levels from 30 to 3100 lumens cover a wide range of situations, and the included ARB-L21-5000 will run the light for anywhere from 2.5 to 69 hours, depending on output levels used. The single side switch activates on/off and all lighting modes. A magnet on the end allows you to attach the flashlight to most metal surfaces for hands-free use. It's USB-C rechargeable, has a battery level indicator, and is dust and waterproof.