thin light box:Size: A0,A1,A2,A3,A4, other sizes are available, depend on the customer's request.Light source: T4 lighting or LED.Single side or double sides are available. Low power consumption, light distributed evenly, aluminum frame, four sides can be openable.Thickness: 3.50cm.Graphic printing can be changed easily. Modern and exciting Voltage: 220V or 110V