Features Designed to be able to stand and clamp with various devices Clip clip range 15-45mm. Can be attached to the edge of the bed, table, bookshelf. Comfort light, no strobe and most eye care Able to twist the direction of light 360 degrees Specifications Lamp type: table / clip holder Built-in battery capacity: 1500mAh Continuous lighting time: with 3 light levels corresponding to the time levels: 9.5 hours – 19 hours – 70 hours (learning light mode, entertainment light mode, night light mode) Adjust brightness: 3 levels Color temperature: 3900K Power: 4W Accessories: USB Cable Color rendering index: Ra90 Power in: DC 5V-0.8A (comes with a micro usb charging cable, not with the power supply) Dimensions: 123 x 59x 455mm