4000W Variable Voltage Controller Motor Speed Controller Switch Electric Regulator Thermostat Transformer

4000W Electronic Regulator Motor Fan Speed Furnace Electric Heating Tube Thermostat AC 220V Speed Switch Feature: 1. Percent power adjustment display, uniform pressure shifting 2. LED digital display, boost value, step-down value is clearly visible 3. Knob design, stepless speed regulation 4. High quality phosphor bronze material, strong bite force, safe insertion and removal 5. 15A current overload protection switch, real-time monitoring of electricity safety 6. Independently protected, The two-pole jack and the three-pole jack are independently protected. 7. Safety, With overload protection, short circuit protection, multiple protection, safer and more practical 8. Bold power cord, good electrical conductivity, high temperature resistance 9. Up and down wall design, easy to use, clever use of space Specifications: Name: Variable Voltage Controller Model: ST-BTA41-B AC Input: AC 220V AC Output: AC 0-220V (Adjustable) Power: 4000W Rated current: 9A Peak current: 18A Material: PC/PP Color: White Size:10*10*5cm/3.9*3.9*2in Cable length:120cm/47.2in Warning: 1. The load must be plugged in to adjust the voltage 2. There is a high voltage inside the cover, please do not open it yourself. Package include: 1 x Variable Voltage Controller (we will provide adapter according to delivery country)