[Mode] Constant Bright, Slow Cycle, Explosive Flash, Fast Cycle [Available Pipe Diameter] Suitable for sitting pipes within 4cm Charging time is 2 hours and using time is 6 hours. High brightness LED lamp, using rechargeable lithium polymer batteries, automatic charging and cutting off system. Smooth and fashionable design, sealing and waterproof.The slender and sharp shape is matched with prismatic design of Dao-guang pillars. Extra wide-angle irradiation range provides more safety protection.New design elastic bandage, strong Installed on the bodywork of various shapes and diameters.