The CX4010 is for use in North America. It converts 110 VAC primary voltage input to 18 VAC, 22 VA secondary input.Main FeaturesProvides efficient, constant power for compatible control panels and modulesRating (Primary) : 110VVACRating (Secondary): 18VAC, 22 VAGeneral InformationName: Bosch CX4010 Plug-in 18V, 22VA Transformer, The Bosch Group, BoschCategory: Bosch, Intrusion, Batteries & Power Supplies, Power Products, Power Transformers, Transformers, Plug-in TransformersUPC Code: 782695097434Country of Origin: China. Country of origin is subject to change.