Powermall 6W 5V USB LED Desk Lamp Table Light Book Reading Light Eye Protection, 2 Modes of Adjustable Brightness and Colors (White& Warm White) , with Flexible Gooseneck and Clip Clamp, Suitable Lighting for Bedside, Desktop, Computers, etc Provides natural, non-flickering light for stress free productivity and enjoyment. 2 brightness and 2 light colors( white and warm white) setting, Eye Care Lamp with 5050 SMD lamp beads. USB PortPower by any DC 5V output power source, you can plugged into computers, mobile power pack, adapter etc. Flexible Gooseneck- You can adjust the light direction as you want. Powered by the power bank,computer with USB wire or wall outlet