Features: Brand new and high quality Adopt high-quality electronic circuits and integrated components, and have a long service life. It has the advantages of small size, high precision, wide speed regulation range, low energy consumption, and easy use. It is widely used in production equipment in packaging, printing, jewelry electronics, instrumentation, clothing machinery, medical machinery and other industries. This product can be used for speed regulation of YYDJ, YCJT, YTCJ, YCJFK and other series motors. When using, please adjust the external speed to '0' first to avoid generating instantaneous large current and causing permanent damage to the controller. Package includes: 1x Motor speed regulator Specifications: For housing material: plastic Speed range: 90-1400rpm Rated power: 400w Power frequency: 50hz/60hz Input voltage: 110v~220v Size: as shown in the picture Note: 1. Please allow 1-2cm error due to manual measurement, please make sure you do not mind before ordering. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.