Product Model: 1933 Multi-function Pen Holder Lamp 24 LED lamp beads - no flicker for 3 hours - strong light illumination Touch dimming: (with master switch) Long press to adjust brightness: three tones Built-in lithium battery: (non-removable) Dimming method: stepless dimming Color temperature of light source: 3000-6000K Battery capacity: 1200mah lithium battery Rated voltage: DC 5V Shell material: ABS rubber Light source color: white light / warm light / white warm light Factory accessories: Packaging instructions Color box * 1pc table lamp * 1pc USB charging cable *1pc