Hanging Neck Lamp Student Eye Protection Led Reading Lamp USB Rechargeable Book Lamp, White, Black

1. Main function: LED power display/free dimming
2. Adjustable three-color light, cool white light/warm light/warm white light
3. Battery capacity: 2000mA
4. Number of lamp beads: 4 LEDs ( 2 cool white: 10000K ) ( 2 amber: 1600K )
5. Lamp power: 4W
6. Input voltage: DC 5V
7. Charging current: 0.7A
8. Working current: 180ma
9. Charging time is about 5H
10. White light/warm light discharge time 13-72H, warm white light discharge time 11- 60H
11. Switch mode: button + touch
12. USB cable length: 1m
13. Net weight: 196g