High Brightness Warning Tail Light: High Brightness Beads, Easy Installation, Waterproof for Life High brightness COB beads Eye-catching floodlight warning: Equipped with high quality COB lamp beads, Uniform light, strong penetration Multiple light modes One button fast switching: The stand-alone machine switches the light-up mode, in order. Standing light - shutdown - running light - shutdown - blinking - shutdown - cyde 300mAh battery Type-C charging: Can be connected to computer, charging treasure charging Charging and charging alerts: Charging with red light Filled with bright blue lights Tool-less installation: Quick installation without tools Daily waterproofing: Waterproofing for life Effective resistance to rain Lightweight design: Lighter weight for a more comfortable ride Name:Bicycle warning tail light Bead Type:COB LED Product Weight:24g Battery Capacity:300mAh Charging Methods:Type-C Charging Time:about 40min Working Environment Temperature:-30℃-65℃ Working environment humidity:Less than 80% Storage environment:-40℃-75℃ Colour:Blue Material:ABS+electronic components Package Contents: 1 x bicycle tail light 1 x USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.