Features: 1.Wide range of use 2.Stable performance 3.Silicon controlled withstand voltage up to 1200V/current 25A 4.1.6mm thick epoxy copper clad plate 5.The Pressure regulator has a peak voltage absorption circuit to effectively protect high-power thyristor, which has a longer life and is more durable   Parameters: Operating voltage: AC 220V High power: 2000W Voltage regulation: AC 50-220V Specification and size: High temperature resistant FR-4 circuit board, circuit board around 36MM * 48MM Outer size: 48MM * 60MM (knob direction) * 28MM (height) Silicon controlled withstand voltage up to 1200V/current 25A 1.6mm thick epoxy copper clad plate The Pressure regulator has a peak voltage absorption circuit to effectively protect high-power silicon controlled rectifier, which has a longer service life and is more durable. Usage: Connect the product in series to the circuit of the desk lamp or electrical appliance (that is, disconnect any of the live or zero wires of the desk lamp or electrical appliance, and connect the two wires of the product). Rotate the rotary lever of the Potentiometer, which can play the role of light and dark regulation, speed regulation, voltage regulation, and temperature regulation; Very convenient to use. Package include: 1 * Module