24 LED Simple Desk Lamp Modern Folding Reading Lamp, Toughened Glass Base (Black) No flickering or flashing, suitable for Bedroom, Home Office, Bedside, Computer side, Office desk, etc. Can be powered by USB or AC Adapter 110v-220 (Adapter included) Size: Base diameter: 5.5" ; Height: 11" ; Tube Length: 11" With 24 high brightness and energy saving LED beads, 50,000 hours working life. Material: Zinc alloy Lamp body, Toughened glass base