UL certified and safe use: UL certified, class 2 transformerPrimary voltage: 120, 208, 240V. Secondary voltage: 24VSpecification: 40VA volt amp ratingProduct dimensions: 3.7 x 2 x 2.2 inches, foot mountWide compatibility: this transformer is designed for use in industrial, heating and air conditioning controls, including air conditioning circuits, relays, and valves or other applications that do not the listed ratingscolor:Photo colorMaterial:MetalPackage Contents:1 x Control TransformerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.