1.1. Versatile and multifunctional: This AC speed controller is suitable for AC220V motors with 50/60 Hz, offering a wide range of speed adjustments from 90 to 1400 RPM at 50 Hz. 2.2. quality electronic circuitry: The speed controller features electronic circuits and integrated components, ensuring stability and reliability. It maintains performance over long operating periods, thereby reducing maintenance and replacement costs. 3.3. Compact and exquisite design: With its compact size, this AC motor speed controller is easy to install and suitable for limited space conditions. Its precision speed control function makes it ideal for equipment and production lines requiring precise speed regulation. 4.4. Wide range of applications: The speed controller is suitable for various industries, including packaging, printing, food processing, electronics manufacturing, instrumentation, medical equipment, and apparel.