Features: Ultra-thin design, 5mm thickness, easy to carry, suitable for A4 sheet. Adopt high-quality acrylic panel, high luminousness, pressure-resistant and wear-resistant. Equipped with a touch switch which maintains the adjustable brightness of the light board. You can adjust the light by simply touching the switch and its super bright LED lamps provide a perfectly illuminated surface. Adjustable brightness ensures perfect illuminated working surface for better tracing performance. Double side hidden LED into the light design, unique model of light provides enough brightness, diffuse reflection effect by joining the honeycomb cushion, makes the light more even, and protects your eyes. USB interface, the LED light pad can be powered by computer, power bank or power adapter with USB plug. Wide compatibility, suitable for sketching, drawing, animation making, calligraphy and tattoo tracing, etc. Specification: Name: LED Light Pad Brand: Huion Model: L4S Working area: 310*210mm Working surface: Acrylic panels Light source: LED Working voltage: 5V Working current: 600mA Luminous flux: 110LM Color temperature: 8000-10000K Eveness: 90% Brightness: 745cd/m Backlight Life: 50000hrs Light guide way: Light panel Item size: 36 * 27 * 0.5cm /14.17 * 10.63 * 0.2in Item weight: Approx. 610g /21.52oz Package size: 39.1 * 30.7 * 3.5cm /15.39 * 12.09 * 1.38in Package weight: 860g /30.34oz Packing list: 1 * L4S LED Light Pad 1 * USB Cable 1 * User Manual