1. Modern Minimalist Circle Design Metal Bedside Lamp LED Table Lamp Portable Bedside Lamp, Desk Lamp, Eye Caring Reading Lamp, Childrens Study Lamp, Beautiful Decoration Lamp for Bedside Bedside Table, Living Room Desk .Lamp diameter size: 25CM/9.85inches. 2. Touch the metal part of the bedside lamp to turn the lamp on/off and change 3 light temperaturesThe touch control of the metal lamp is detected by electrostatic induction, the touch function may not work properly under certain conditions that absorb electricity static, for example, a metal table, a marble table, a floor, a mouse pad, etc. you can put a plastic pad or a tablecloth on the metal table. . 3. Dimmable table lamp, long touch the metal part of the lamp to adjust 9 levels of brightness Dimmable bedside lamp with memory function, this lamp can retain the last brightness setting of each mode, you dont need to adjust the brightness each time. . 4. Circular metal bedside lamp, lamp diameter: 25CM/9.85inch This bedside table reading lamp is made of metal and high transparent matte, acrylic seal to protect eyes and maintain brightness. . 5. Powered by 2 meter length USB electric cable (not battery powered), Eye Caring LED Table Reading Light Soft light, no flicker, easy on the eyes, beautiful reading light for desk, bed, bedside.