Mode: Output / Runtime High: 180 lumens / 23 minutes Low: 5 lumens / 12 hours USB A-C charger. Description: This limited edition 16th anniversary Olight i16 is a rechargeable LED keychain flashlight that is the ultimate mini flashlight. It has a cylindrical design and a reliable twist mechanism. You can't screw the cap all the way off, when the threads disengage, a catch mechanism ensures you will never lose your light. Olight Flashlights are high-end and high-power flashlights.