... sculpture, cut, etc.2. Specification InputInput VoltageAC220V or AC110V(to be specified when placing order)AC frequency47—440HZCold Surge Current ... source, electric power supply,mains. etc. If you want to buy this product, please contact with Mr. Xu Kuishan Power Supply, Laser ... source, electric power supply,mains. etc. If you want to buy this product, please contact with Mr. Xu Kuishan 40W CO2 laser ...