Specificaton:

Weight: 400 mA, single color box weight: 281g

Charging time: 4000mh, 8.5h

Usage time:
4000mh first gear lighting time: 6 hours; 13 hours for the second gear;

Input voltage, 5V output voltage 5v, impulse input power 5w, input current 1A, output current 1A, working voltage 3-4. 2V

Package included:

1 x 4in1 4000mAh Rechargeable Bicycle Lights

1 x Rubber Band