Features: HVAC Voltages Changer can convert high Voltages power to low Voltages, ensuring that all component can obtain appropriate and stable power supply. Ensure the normal and efficient operae of the equipment, avoiding any adverse effect that maybe caused by Voltages fluctuations. By providing a stable Voltages, control Voltages Changer can reduce the internal pressure on electrical equipment, delay the aging process. Make of Plastic materials, corrosion resistance, wear resistance, highly temperature resistance, structural integrity, high stability. It can be used for long terms under various conditions. Easy to use. Specifications: Materials: Plastic Size: about 6x6cm/2.36x2.36inch Primary Voltages: 120V Secondary Voltages: 24V Capacity: 40VA Frequency: 60Hz Power Limiting: Class 2 Package Includes: 1Pc Control Converter 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.