NowAdvisor&reg; 2400Lm Bike Bicycle Light , HeadLamp with 1x CREE XM-L T6 LED + 2x XPE R2 LED Super Bright 2400Lm Bicycle Flashlight Headlamp Output bright can come to max 2400 lumen. Can be used as Headlamp or Bicycle Light. Internal wiring applies high efficient booster circuit utilize batteries in the largest extent. Perfect fit for outdoor sports, such as camping, traveling, hiking. Waterproofing design,Easy to install and use.