Product information:

Light source: 35 LEDx2 (70 in total)
Light Color: Green/Red/Blue/Pink/White
Battery: button cell 2032x2
Size: battery box 5.5*2.4*0.7cm
Lamp length: 35cm*2
Use time: 20-40 hours
Flashing mode: fast flashing - slow flashing - always on

Packing list:

1* bicycle light