Fenix E15 450 lumens Rechargeable EDC Keychain LED Flashlight with USB Rechargeable Battery Maximum 450 lumens when using rechargable 16340, 270 Lumen when using 1xCR123A Battery Ultra Compact size: 2.6 inch in length and 1 oz in weight (excluding battery) Reliable Twisty head switch, easy to turn on/off with one hand Strong and durable, Capable of standing up securely on a flat surface to serve as a candle Bundle includes brand new manufacturer E15 package, a Fenix ARB-L16-700U 700mAh Rechargeable 16340 battery with it's own built-in Micro-USB charging port to eliminate the need of a seperate external charger, & LumenTac USB to Micro-USB charging cable.