E3L Adjustable-height Fashion Led Desk Lamp with Foldable Style, Multi-power Sources&mdash;usb or Power Adaptors, 5 W, White Multi-power sourcescharges via USB to computers or power adaptors Provides natural, non-flickering light for stress free productivity and enjoyment Adjustable-Heightfrom 8 inch to 13.5 inchVertical movement on lower arm with vertical and horizontal movement on the lampshade for greater Integral On/Off switch 5 feet power long connection cable