The Fenix E28R is a tactical LED flashlight with an innovative micro-USB rechargeable design. It features a convenient side switch for easily accessing 5 brightness levels and a strobe mode. It includes an 18650 battery that recharges internally with any standard micro-USB cord. It has a rating of IP68 waterproof protection making this E28R a tough and compact flashlight that is ideal for outdoor, utility and tactical applications. Mode: Output / Runtime Turbo: 1500 lumens / 2 hrs 5 mins High: 800 lumens / 2 hrs 30 mins Medium: 350 lumens / 6 hrs Low: 150 lumens / 17 hrs 15 mins Eco: 30 lumens / 73 hrs 35 mins Strobe: 1500 lumens