Rechargeable White Led Lights Ukelove Desk Lamp USB Light Portable Book Lighting Clamp with Flexible Neck Tube, Easy Touch Control, 3 Brightness Levels, 3w, Eye Care Protection,Save Electronic Power 3 Levels of brightness through touch sensor switch. Non-flickering, no harsh to eyes, and zero-radiation. Flexible neck suitable for use in office, bedroom, school, and reading. Easily to compact position. With rechargeable lithium battery for up to 12 hours of continuous lighting. The thinnest LED desk lamp on the market, portable design that is equally at home indoors and out.