Gradual Stepless Dimming Ever-Changing Universal Three-Color Temperature Hanging Neck Hose Reading Lamp 1. Shade material: PC, lamp holder material: ABS 2. With USB charging cable 3. 360 degree universal adjustment 4. Switch type: button type 5. With memory function of light brightness 6. Power supply: 400MAH ternary polymer lithium battery 7. The red LED indicator light is on when charging, and it will go out automatically when fully charged 8. Duration: about 4 hours, charging time: about 1 hour 9. The light is 3000K-5500K-4500K three-color light adjustable, and the brightness is infinitely dimmable 10. Long press the power switch for 3 seconds to turn on the light, and then quickly press the power switch to cycle through: 3000K light color-5500K light color-4500k light color-turn off the light 11. Multi-scene use occasions: hang on the chest to read a book, hang on the chest and use it as a night running lamp, also can be used as a small desk lamp, can be hung as a camping lamp 12. Voltage: 5V 13. Brightness: 90 lumens 14. 4 super bright LEDs, power 1W 15. Product size: 71x3.4x1.5cm 16. Gross weight: 125g