Solar Energy Bike Tail Light
- No batteries,environment-friendly and economic,charge under sunlight
- Three Modes: quick flash / slow flash / keep lighting
- Two LED bulbs last for 4-8 hours,Waterproof.
- Easily install on the chain stay, adjustable diameter from 2.2cm to 3cm,Fit more than 90% bicycles
- Measures:7 x 5.5 x 2cm/2.76 x 2.17 x 0.79in