A4 USB LED Light Stencil Board Light Box Tracing Drawing Board (Stepless Adjustable Brightness) Features: 1. Comic tools, ultra-thin A4 copy board, essential for anime schools. 2. High light transmittance: acrylic panel, 4.7mm thick, more transparent and lighter than traditional glass. 3. Eyes protection: The light guide plate can effectively make the light even, make the light source stable, and protect the eyes from light damage. 4. Adjustable light: You can adjust the light to the most comfortable brightness. 5. : high transparent acrylic panel with good toughness and uniform pressure, wear-resistant and durable. 6. USB interface: can be powered by mobile power, mobile phone plug, computer, etc. Specifications: Material: Acrylic Color: White Type: 3-Level Adjustable Brightness, Stepless Adjustable Brightness (Optional) Operating voltage: 5V Thickness: 0.47cm / 0.19in Lighting area size: 30 * 21.5cm / 11.8 * 8.5in Size: 33.5cm * 21.5cm / 13.2 * 8.5in Weight: Approx. 413g Note: 1: Handle with care, do not use sharp metal objects, and protect working surface from scratches2: Use on a safe and stable work surface3: If the warranty, warranty will be invalid4: Always store in a safe and dry place after use Package List: 1 * A4 Light Board 1 * USB Cable