Solar Bicycle Taillight Intelligent Light Sensor COB LED Warning Lamp for Mountain Road Bike - Heart •【Intelligent Light Sensor】Built-in light sensor automatically turns the light on at night and off during the day,eliminating the need for manual operation •【Solar Powered】Equipped with a high-efficiency solar panel for eco-friendly charging during daylight hours •【Bright COB LED】Features a high-brightness red light COB LED lamp bead,providing excellent visibility for nighttime cycling •【Multiple Lighting Modes】Three lighting modes available: slow flash,steady,and fast flash,catering to different riding conditions •【Water-Resistant】IPX4 rated for water resistance,suitable for various weather conditions •Specifications: •Material: ABS engineering plastic •Lamp beads: red light COB lamp beads •Lumen: 250LM •Battery: 3.7V 200mAh polymer battery •Battery Life: 3 hours on high brightness •Lighting mode: slow flash/medium bright/fast flash •Waterproof level: IPX4 •Product size: 78*31*56mm •Product weight: 30g Package included: •1 x Bicycle Taillight •1 x Charging Cable •1 x English and Chinese User Manual