(4 X CREE XML T6 LED 5200 Lumens & Keep the Same Brightness All The Time & 3 Modes & With Rechargeable Free Battery & Waterproof & Perfect for Camping and Backpacking Trip, Hunting, Fishing, Car Emergency ) 4x CREE XM-L XML T6 LED 5200Lm Cycling Head Front Bike Bicycle Light 6400mAh Waterproofing design Can be used as Headlamp or Bicycie Light 3 switch Mode: high / low / strobe Model of Battery required: 1 x 8.4v 6400mAh Battery Pack Output 4 x XM-L T6 WHITE LED bright can come to max 5200-6400 lumens [lm]