• 4000W AC Voltage Regulator and Motor Speed Controller with knob
  • Top view of AC motor speed controller showing metal mesh heat dissipation
  • Back view of aluminum housing for 4000W SCR dimmer controller
  • Side view of voltage regulator showing caution high voltage warning label
  • Dimensions of 4000W SCR Voltage Regulator showing 88mm by 57mm size
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4000W AC SCR Voltage Regulator Motor Speed Controller & Dimmer (220V)

4000W AC SCR Voltage Regulator Motor Speed Controller & Dimmer (220V)

HK$48.00
HK$48.00
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Delivery Options

  • Local delivery within Hong Kong and in-store pickup.​
  • Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.​
  • Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).​
  • Estimated delivery time: 1–3 business days after dispatch (Hong Kong).​
  • In-store pickup details (location and time) will be confirmed by email or phone message.​
  • Delivery times are estimates and may be affected by weather or unforeseen circumstances.​

Achieve precise control over your electrical appliances with this high-efficiency 4000W AC Voltage Regulator. Utilizing advanced SCR (Silicon Controlled Rectifier) technology, this device allows you to easily adjust voltage, motor speed, brightness (dimming), and temperature for various 220V applications.

Key Features:

  • High Power Output: Supports up to 4000W resistive load, making it suitable for water heaters, tungsten lamps, small motors, and electric irons.
  • Durable Construction: Features a robust metal casing that protects internal components and acts as a heatsink to prevent overheating.
  • High Efficiency: Operates with ≥90% efficiency for reliable performance.
  • Safety Design: Equipped with a protective cover over the terminal blocks and a clear "High Voltage" warning on the side. Includes a rotary knob with an integrated switch.
  • Zero Lag: No delay or lag in voltage adjustment, ensuring instant response.

Technical Specifications:

  • Product Type: AC Voltage Regulator / SCR Controller
  • Input Voltage: AC 220V
  • Output Voltage: Adjustable (0-220V AC)
  • Max Power: 4000W (Resistive Load Limit)
  • Efficiency: ≥90%
  • Dimensions: 88mm x 57mm x 30mm (approx.)

⚠️ IMPORTANT USAGE WARNING: This controller must be connected to a load (equipment/appliance) BEFORE testing or adjusting the voltage. Testing the output with a multimeter without a load connected will not show correct voltage regulation readings.

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