A compact cycling safety light built around three highoutput LED emitters \n Offers up to 500 lumens of output and a highly disruptive Daytime Flash mode \n Features lightweight yet durable waterproof construction, rigorously tested to IPX7 waterproofing standards \n Convenience and versatility with six output modes, up to an impressive 100hour max runtime, and waterproof USBC charging(cable not included)