Instructions for use: 1. The power bank, mobile phone adapter, and notebook computer can be connected to the product through the USB cable to input current. 2. Touch the circular switch touch point with your finger when using. 3. In the standby state, the color temperature of the lamp can be changed by a short touch of the touch switch. When the light is on, long the touch switch to adjust the brightness of the light. 4. The three small lights above the touch switch of the product are power indicator lights, and all three lights are fully . Product Name: USB Portable Charging Desk Lamp Rated current: 1A Rated voltage: 5V Rated power: 3W Battery: 18650 lithium battery -3.7V Color temperature: warm white light 3000K/ 4000K/white light 6000K Brightness adjustment: 0-100% (long ) Control method: touch control Model Number: TD009 Item Type: Is Dimmable: Yes Switch Type: Touch On/Off Switch Style: Modern Light Source: LED Bulbs Power Source: Rechargeable Battery color:Grey Material:ABS size: 27.5 x 8 x 5cm Package Contents: 1 x table lamp 1 x USB cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.