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
What's in the box
1 x Speed Regulator
