LED Desk Lamp USB Dimmable Touch Foldable Table Lamp with Calendar Temperature Clock Night Light for Study Reading Lamp Features: 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-in Brightness: touch three-position dimming Light Color: White/Warm White/Natural Light Voltage: 5V Power: 7W Number of lamp beads: 40 Color temperature: 3000-6500k Switch: Touch switch Battery capacity: 1800-3200mah Packing List: 1 * LED Eye Protection Desk Lamp 1 * USB charging cable 1* User Manual Tips: 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.