A4 Super Slim Led Light Shelf With Usb Cable Adjustable Brightness Drawing Sketching Tablet Architecture Calligraphy Crafts The product is shipped based on the color or size of the main image of the product page. Features: Material: AcrylicLight type: LEDDimensions: approx > 35.5 * 23.5 * 0.8cm / 14 * 9.3 * 0.3in Illuminated area: approx > 31 * 21cm / 12.2 * 8.3in Thickness: 0.8cm / 0.3in Wire length: approx > 190cm / 74.8in Interface: Micro USB Power: 5V 1-3A Item Weight: 513g / 18.1oz Package Size: 39 * 26 * 3cm / 14.2 * 9.4 * 1.6in Package Weight: 696g / 25.4oz Package List: 1 * Light Shelf A41 * USB Cable Note: Remove the protective cover before using it, we just provide a USB cable, you can power the universal phone adapter, the power supply or the Computer USB interface > The package only includes the light board and the USB cable > If the light flashes after power on, the normal situation may be caused by the input not match the product > You may solve the problem by replacing the charger, the treasury charger, or the computer interface > The memory function does not work if the power is turned off > e.