WINDFIRE 5000 Lumen Cree XM-L 2X U2 LED Cycling Front Bicycle Bike Light & Free Rear Back Tail Light, Rechargeable Bike Light Headlight Lamp Set with 6400mah Battery Pack Super Bright: 2X CREE XM-L T6 LED, can reach up to 5000Lm, 150 degree wide range visual. Waterproof: High Quality Aluminum Alloy with Fine Anodized Surface Treatment, allows you to ride in rainy days. Complete set: Bicycle front light with headlamp included, it can be used as a headlight as well, bicycle rear tail light for warning, emergency, perfect for night riding. Widely used in outdoor activities like riding, camping, fishing, hiking, hunting, etc.. Rechargeable Battery Pack: 6400mAh rechargeable Battery Pack(Last about 2-3 hours on high mode). 4 Switching Modes: Low/Medium/High/Strobe(Long Press to strobe)