Features High Quality 5V 1-Channel Relay Module: This module offers high-quality performance with a 5V power supply and 1-channel bistable self-locking relay, ensuring reliable and efficient . Convenient Trigger Control: Easily activate the relay by clicking the trigger port to pull it in and hold, and click again to disconnect, providing convenient and intuitive control. and Long Service Life: Constructed with high-quality materials, this relay module is and has a long service life, ensuring lasting reliability for your applications. High Accuracy and Strong Stability: With high accuracy and strong stability, this relay module is easy to install and use, delivering and reliable performance for various applications. Safe Low Pulse Trigger: The trigger mode is a low pulse trigger, providing a more convenient and safer for your peace of mind. Features: 1、Great Parameter Consistency: The automatic voltage regulator has great parameter consistency, low drift, and uses nice capacitors, high reliability. 2、Basic Values: Our automatic voltage regulator detection input is 400VAC 3 phase, 3 wires. The excitation voltage is 20 to 100VAC and the shunt current is 8A. 3、Working Temperature: Our automatic voltage regulator has high accuracy, nice resistance and wide range of working temperature, and great stability. 4、Low Speed Protection Function: The automatic voltage regulator comes with low speed protection function, safe and practical. 5、Easy to Carry: Our automatic voltage regulator is light weight and easy to carry, allowing you to replace and maintenance in a timely manner. Specification: Item Type: Automatic Voltage Regulator Material: ABS Voltage: 220V Detection Input: 400VAC 3 phase 3 wire Excitation Voltage: 20 to 100VDC Shunt Current: 8A Voltage Regulation Accuracy: between±1%RMS (engine speed change within 4%), low speed protection function, 50Hz 60Hz regulable. Package List: 1 x Automatic Voltage Regulator Package List 1 x Automatic Voltage Regulator