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AC Motor Speed Controller 120V 15A Variable Speed Controller & Fan Speed Controller, Electronic Voltage Regulator for Electric Motors with Overload Protection, LED Display for Precise Control

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$29.99

$ 14 .99 $14.99

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About this item

  • 【Specifications】Input Voltage: 110-120V; Current Capacity: 15A Max (Rated Current 10A); Frequency: 60Hz; Resistive Load: Max 2000W; Inductive Load: Max 1000W
  • 【Robust Protection】The variable speed controller, is equipped with multiple protection measures including surge protection, spike protection, and RC absorption. Flame-retardant insulation shell remains stable at high temperatures, with excellent resistance to conductivity, rust, and high voltage for outstanding safety performance
  • 【Overload Protection】The fan speed controller, is equipped with an independent switch for voltage control, featuring overload and short-circuit protection. The switch will automatically shut off when the instantaneous current exceeds 15 amps, ensuring safety for both equipment and users
  • 【Portable Design】With a clip-on design, it can be easily attached to a belt for convenient operation. Compatible with standard Type A and Type B plugs in the United States. High-precision LED voltage display provides real-time output voltage for easy adjustments at any time
  • 【Wide Compatibility】Can adjust temperature, speed, light, and voltage settings, suitable for electric fans, exhaust fans, drills, angle grinders, blowers, electric drills, LED lights, and more. Not suitable for appliances with circuit boards and capacitor electronic components, such as microwaves, induction cookers, rice cookers, water pumps, washing machines, LED energy-saving lamps, and similar devices



Product Description

Motor Speed Controller
Motor Speed Controller

Specifications Parameter

  • Input Voltage: 110-120V
  • Current Capacity: 15A Max
  • Rated Current: 10A
  • Frequency: 60Hz
  • Resistive Load: Max 2000W
  • Inductive Load: Max 1000W

Precision Voltage Adjustment Knob

Voltage adjustment utilizes a precise potentiometer, offering high accuracy and excellent stability.

3-speed stepless variable speed knob

  • High Speed: 81~100%
  • Medium Speed: 41~80%
  • Low Speed Gear: 0~40%

It is suitable for US standard A plugs and B plugs

Motor Speed Controller

Speed Adjustment

Applicable to fans, exhaust fans, drills, angle grinders, etc.

Motor Speed Controller

Lighting Adjustment

Suitable for dimmable incandescent bulbs, dimmable LED lights, high-pressure halogen lamps, tungsten filament bulbs, etc.

Motor Speed Controller

Temperature Adjustment

Suitable for resistors, heating wires, heating elements, electric furnaces, etc.

Motor Speed Controller

Overload Protection Switch

The independent switch controls input and output voltage, equipped with overload and short-circuit protection, replacing toggle switches and fuses, elevating safety measures.

Motor Speed Controller

High-Precision Voltage Meter

The new digital output voltage meter delivers a sharp, precise readout, Making the machine's operating voltage clear at a glance.

Motor Speed Controller

Portable Design

For the convenience of operating angle grinders, it is designed with a tool hook on the tool bag for safe and practical use.

motor speed controller

Precautions and Usage Instructions

1. Ensure Proper Voltage Measurement: When the machine operates without a load, the measured output voltage is only virtual. For an accurate voltage reading, connect a load of at least 20W before adjusting the voltage.

2. Suitable Power and Voltage Range: Please operate the machine within the specified rated power and voltage range. It is intended for use with AC grid power only.

3. Power Limits for Different Loads: The mentioned 4000W power rating refers to the maximum limit when using resistive loads. For inductive loads, such as series motors, the power should be limited to 1/3 of the resistive load power. Exercise caution when using the machine with circuit board electronic products.

4. Normal Heat Generation: It is normal for the machine to generate slight heat during operation. Place and use the machine in a dry and well-ventilated area.

5. Safety Precautions: This product features a flame-retardant plastic shell and must be properly grounded. Ensure that the power outlet is grounded for safe operation.

6. Incompatibility with Soft Start Voltage Regulators: This machine is not designed to work with soft start or slow start voltage regulators. Additionally, it should not be used with ordinary LED lights and household appliances.

7. The power switch includes an overload protection function. If the power is switched off due to overload, it can only be turned on again after a certain period when the overheating protection has been triggered. To resolve the issue, reduce the connected load.


Nicholas J. Macias
Reviewed in the United States on February 20, 2025
This works well as a motor speed control. I got it for slowing down a fan that was too loud at its lowest speed; unfortunately, the controller itself makes some noise, which was louder than the slowed-down fan. That may be inevitable, and wouldn't be a problem if I weren't using it for a nighttime setting.
Midwest Shopper
Reviewed in the United States on February 19, 2025
I used this to slow down my MY-TE AB100 winch. This is a fraction of the cost of the Manufacturer's comparable product. It worked well and allowed me to adjust the voltage to 89 VAC before the winch would stop. Enough voltage drop to slow down the winch to an acceptable speed for my project. I have also hooked it up to a fan. It slows the fan down to an acceptable noise level.
Grant Fowler
Reviewed in the United States on August 23, 2024
Purchased for a router table. The speed control seems to be pretty rough, just barely better than an on/off switch. This doesn't inspire confidence in it. I'm going to remove it.Updated 2 stars to 5 based on a very good customer service experience. Yes this didn't work for me, however the seller reached out and offered a swap or refund (this was after the return window) I opted for the refund. I gotta say it was quick and easy. Seller's customer service makes it a 5 star.
Floyd Hendricks
Reviewed in the United States on July 18, 2024
The purpose of the product was to power and control a 1/2 horse motor but it would not start the motor. It’s possible that there is a problem with the motor.
Brady wayne
Reviewed in the United States on December 6, 2024
Works great to control my electric blower. Can make it spin faster or slower. Does the job and good price
BOBBYBABY
Reviewed in the United States on December 16, 2024
Fast shipping , works great with my air duct fan. Good product to regulate speed.
Maxwell
Reviewed in the United States on December 11, 2024
Compact and easy to use voltage controller. Used with a shop vacuum and an angle grinder and it works very well with both. Sometimes I just need a small vacuum flow for wood or drywall dust and this way it’s not so loud and the vacuum outlet is not causing a dust storm in the room. With speed control of the angle grinder I’m able to use it as a saw with proper speed for cutting a material. Only owned and used a short time so can’t speak to reliability yet.
Mark L.
Reviewed in the United States on October 22, 2024
Works great , exactly what i needed , my electric hand sander was way too fast to be useful. with this speed control unit my electric hand sander is very useful. i use it mostly for auto & motorcycle paint work !
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