Features: Experiences power conversion with our HVAC Voltages Changer, featuring a primary voltage of 120V and a secondary voltage of 24V. With a 40VA capacity and 60Hz frequency, this Class 2 power limited Voltages Changer is designs for efficiency and reliability. Make of Stainless steels and Plastic with voltage protections, current protections, temperature protections, overloads protections. Easy Installation: Equipped with cables and insulated female quick connecting, our Voltages Changer ensures a easily installation. Can be used to power systems such as HVAC controlling systems, automation equipment, and lighting fixtures. Specifications: Component: Stainless steels and Plastic Size: about 7.11x4.75cm/2.8x1.87inch Primary voltage: 120V Secondary voltage: 24V Frequency: 50/60HZ Capacity: 40VA Package Includes: 1pc Voltage Changer note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color.