SpecificationsIntelligent sensing:YHign-concerned Chemical:NoneWaterproof Level:IPX 5Support Dimmer:5-8 filesBody Material:PlasticOrigin:Mainland ChinaBicycle Taillights Mountain Road Bikes High Brightness Warning Lights Intelligent Brake Sensor Lights Outdoor Cycling TaillightsNote: 1. Due to the differences of camera equipment, light intensity and display screens, the color of the item may be slightly different from that shown in the pictures. 2. Due to manual measurement, please allow a tolerance of 0.1-2cm