SecurityIng Super Bright 3 LEDs 2100Lm Waterproof Mini Bicycle Light + 7000mAh Battery Pack + Charger Adapter Adopting 3 x LED chips, this professional mini bicycle light has high luminous flux up to 2100Lm and long lifespan up to 100,000 hours. It has 3 modes of light with a tail point-touch switch.The mirror reflective cup offers excellent reflective effect. Made of aviation aluminum alloy with CNC machining, it has high quality and durability. The attractive head design and anodizing hardening treatment processes and military requirements make it practical in outdoor environment. With a 7000mAh capacity battery pack, it is practical for outdoor activities.Easy and fast to be removed and installed with the equipped fixed rubber ring.