LED Concepts Rechargeable Super Bright CREE XML-T6 1200 lumen Bike Headlight Set&ndash;With Taillight, Headband, and Waterproof Battery Included Headlight features super bright CREE XML-T6 LED technology with 1200 lumens One-touch switch design with three modes  for headlight: low, medium, and high  for taillight: steady, flashing, and rapid Headlight comes with external, rechargeable, and waterproof battery for protracted rides Perfect bike light set for biking, hiking, running, camping, or any outdoor activity Box includes: headlight with a shortened cable, taillight, waterproof battery, battery pack charger, battery holder with strap, stretch headband accessory, and three different sizes of headlight fasteners to fit small and large handlebars