Product details:

Product Specifics Dimension(LxWxH) 400x270x8 mm(15.74 X 10.63 X 0.31 Inch) Active Area 320x228 mm(12.60 X 8.98 Inch) Net Weight 0.68KG Work Surface Acrylic Panels Working Voltage Battery/USB 5V Electric Current 1050 mA Brightness 1500 Lux Color Temperature 6500-7000 K Life span 50000 hours USB Cable Length 1.2m Fully Charged Time 1 hour Product Highlight The first Huion tracing light pad ever that can be used in wireless mode! With a built-in Li-ion battery, this light board can support itself for approximately 5 hours of continuous use when the light is turned on, it takes 1-2 hours for the item to be fully charged. When using it in USB mode, you can not only plug it into the wall charger, but also your computer. Adjustable Brightness. With the adjustable dimming feature, youll have control of the light by simply pressing on the power button until it is the brightness you need. Smart-Memory. When you finish your work and turn off the light table, it can memorize the brightness you set and it will be the exact light you need when you turn on again. Huion LB4 Light Box is measuring ONLY 8 mm of thickness, which is considered to be one of the slimmest light box in the field. Ideal for a wide variety of tasks including arts, crafts, design, drawing, stenciling, tattoo and photo work transferring. Diagonally Length: 17.7 Inches; Working Surface: 12.6 by 9 Inches.