Bicycle Parts 5LED bicycle riding taillight USB rechargeable waterproof safety warning light for night riding helmet backpack light Description A: Function: There are three modes of lighting: constant light mode, fast flash mode, slow flash mode Light source: 5 LED lights Battery: use 2 regular CR2032 electronics (already installed) Weight: 23g or so Net weight: 19g Dimensions: length 56mm * width 28mm * height 18mm Colour:As the picture show(optional) Material: ABS environmentally friendly materials Applicable: outdoor running, mountain climbing, cycling and other outdoor sports Package Included: 1* Running light 1* Screwdriver 1* Tape Description B: Name: Highlight bicycle tail light Lamp beads: highlight COB lamp beads Weight: about 36g (including accessories) Waterproof: life waterproof Material: ABS silicone Power supply: USB direct charge Capacity: 220mAh / 150mAh Battery life: about 6 hours Package Included: 1*Bicycle Tail Light Description C: Name: Highlight creative taillight Weight: 15.5g Range: 200-500m Size: 47mm*40mm*22mm Brightness: about 400 lumens Battery: 2x button battery cr2032 Battery life: 8 hours Mode: strong light-flashing Package Included: 1* tail light Notes: Due to manual measurements, please allow an error of 1-3 cm. Due to problems between different monitors, the image may not reflect the actual color, please refer to the actual product. Thank you for understanding.