GreenZech Ac 220v 4000w Variable Voltage Regulator Step Down Voltage Converter Transformer Motor Speed Fan Control Controller Ra

Specification: Product name: AC 220V 4000W Variable Voltage Regulator. Material: Metal shell. Size: 11.5*10*6cm/ 4.5*3.9*2.4inch(Approx.). Weight: Approx.500g. Input Voltage: AC 220V. Output Voltage: 0~220V (Adjustable). Adjustable Voltage Range: 0~220V. Max Power: 4000W. Rated Current: 9A. Max. Current: 18A. Features: Core chip adopts high power thyristor. With adjustable knob for stepless voltage regulation. No delay, anti-surge, anti-spike, RC absorption multiple protection. With universal power socket and power supply light. With heat dissipation port for fast heat dissipation. 4000W High-power Motor Fan Variable Thyristor Electronic Voltage Regulator Controller. Adopts metal shell structure, high temperature resistance, flame retardant, not easy to rust. Tips: Precautions and instructions for use: 1. When measuring the output voltage when it is empty, it is a virtual voltage. It must be connected to a load of 20W or more to measure the correct output voltage. 2. Input AC power, th