LED Desk Lamp USB Dimmable Touch Foldable Table Lamp with Calendar Temperature Clock Night Light for Study Reading LampFeatures:1. No flickering, no flashing, no ghosting and has no dark zone, better eye protection.2. Slide your fingers along the touch pad to set the brightness level, very easy and convenient.3. Flexible positioning suitable for use in office, bedroom, school, and reading.Specification:Two options: rechargeable and plug-inBrightness: touch three-position dimmingLight Color: White/Warm White/Natural LightVoltage: 5VPower: 7WNumber of lamp beads: 40Color temperature: 3000-6500kSwitch: Touch switchBattery capacity: 1800-3200mahPacking List:1 * LED Eye Protection Desk Lamp1 * USB charging cable1* User ManualTips:1. The product is shipped with a USB cable without the plug.2. The LED display of this product does not emit light at night and will not affect sleep.3. "No Battery" version: this lamp can't work without a usb cable. "Built-in Battery" version: this lamp can work without a usb cable.