The Olight I1R 2 EOS is the ultimate tiny keychain flashlight. This little EDC companion measures in at just 1.5" and gives off an impressive max 150 lumens. 2 modes are easily accessible with a twist on/off function. A micro USB port allows for quick internal battery charging. Always have a light at the ready with the Olight I1R EOS Tiny Flashlight. This one comes with a micro-USB cable for charging. Mode: Output / Runtime Mode 1: 150 lumens / 15 minutes Mode 2: 5 lumens / 6 hours