Huion Travel Charger Wall US Charger 12V DC Power Adapter For Huion A2 A3 A4 Light Boxes Replacement DC adapter for Huion A2/A3/A4 light boxes This item CANNOT be used with the Huion L4S/LB4 model Cable Length: 47.24 inches Input: 100V - 240V 50/60hz Output: 12V 1A DC