General description This modern minimalist circle design metal LED bedside lamp features a portable and stylish look, making it an ideal addition to your bedside table, headboard, living room, or office. It serves multiple purposes, including being an eye-caring reading lamp and a beautiful decorative piece. Technical specifications Diameter: 25 cm (9.85 inches) Power source: USB power cable (2 meters long, not battery powered) Material: Metal and highly transparent matte acrylic Usage Dimmable with three brightness levels, adjustable by long touching the metal part of the lamp Memory function retains the last brightness setting for each mode Soft light, flicker-free, suitable for reading and studying