The CX4010 is for use in North America. It converts 110 VAC primary voltage input to 18 VAC, 22 VA secondary input. Main Features Provides efficient, constant power for compatible control panels and modules Rating (Primary) : 110VVAC Rating (Secondary): 18VAC, 22 VA General Information Name: Bosch CX4010 Plug-in 18V, 22VA Transformer, The Bosch Group, Bosch Category: Bosch, Intrusion, Batteries & Power Supplies, Power Products, Power Transformers, Transformers, Plug-in Transformers UPC Code: 782695097434 Country of Origin: China. Country of origin is subject to change.