Bundle: PowerTac E5 Gen4 980 Lumens CREE XM-L2 LED Flashlight Firefly and Strobe with 18650 3400mAh USB Rechargeable Kit Utilizes a CREE XM-L2 U2 latest LED that enables the E5 to produce an amazing 980 lumen at the brigh The E5 also serves as true tactical light that can be weapon mounted or hand held Push button half way for momentary on; The flashlight will access the mode last used. To switch functions, turn the light on and press the side switch and release immediately Bundel includes E5 pack and 18650 USB Recharge Kit