SecurityIng 1800 Lumens 3X L2 LED Bicycle Light 4 Modes LED Bike Light Super Bright LED Lighting Lamp Bike Headlight with 8.4V 4400mAh Battery Pack & Charger for Camping, Hiking, Cycling, etc This Super bright LED bicycle light owns with 3 x Cree XM-L2 LED, its output brightness is 1800LM. Applies the high efficient booster circuit to the internal wiring, can utilize the batteries to a maximum extent. Intelligent circuit control, there are 4 lighting modes for your option. Timely battery indicator helps you master battery condition. Two ears of the light is equipped with a cooling device, helpful for the heat dissipation.