Feature: 1. Elaborate Making: Small in size, which is convenient to carry arround with you, and with high accuracy, wide speed range 2. Durable Structure: The controller uses electronic circuits and integrated components, which has a long service life 3. Excellent Efficiency: Wiring is simple and easy to understand, easy to install, save time and improve efficiency 4. Adjustable Voltage: Because the knob is adjustable, the voltage can be adjusted freely, which is convenient and simple 5. Classic Appearance: After beening carefully crafting, not only having a classic appearance, but also has a high cost performance Specification: Item Type: Motor Speed Pinpoint Regulator Material: ABS Working Voltage: AC 220V Connector: 6 Pin Ambient Temperature:-10 ~ + 50℃ Uses: Suitable for speed regulating drive devices for production lines in packaging, printing, food, electronics, instrumentation, medical equipment, and clothing industries . Package List: 1 x Motor Speed Pinpoint Regulator Note: 1. Do not unplug or plug when power is on2. Be sure to place the adjusting knob in the low position before work, so as not to burn the controller due to excessive current.