Bicycle Safety 2-LED 32lm 3-Mode Rechargeable Red Rear Light - Black (1 x FY-680)
Build-in 1000mAh rechargeable Li-Ion battery. 2.5 hours charging time 24-36 hours running time. LED constant ON > Quick Strobe > Slow Strobe. Quick release buckle suitable for tube diameter: 20-40mm. 2 LEDs of red lighting. Water-proof.