AGPTEK 2000Lm CREE XML T6 LED Bike Cycling Bicycle Head Light Headlamp Torch Lamp with 4x18650 battery pack and Charger D0078 Model of LED: CREE XM-L T6 LED, Max Output: 2000 lumens. Can be used as Headlamp or Bicycle Light, 100% Waterproof design. Material: Aluminum Alloy + Plastic, 3 switch Mode: Strong Brightness / Normal Brightness/ Flashing. 100v-240v Battery Charger (LED indication for Power On / Charging / Full charge), Model of Battery required: 1 x 8.4v 4400mAh Battery Pack LED Life Span: around 50,000 hours, Discharge Time: around 180 minutes (at 100% brightness)