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The Best 120 Volt Voltage Regulator of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 120 Volt Voltage Regulator of 2023. Check our ranking below.

2,533 Reviews Scanned

Rank No. #1

APC Automatic Voltage Regulator, LE1200, Line-R 1200VA

The APC Line-R automatically corrects brownouts (by boosting low voltage) and overvoltages (by stepping down high voltage) from the power utility service to levels that are safe for computers, as well as other sensitive equipment.
The Line-R provides an ON/OFF power switch/circuit breaker which functions as the master power switch for the Line-R and all devices connected to the device
ON/OFF Power Switch/Circuit Breaker applies and removes power to/from the Line-R. This switch also functions as a circuit breaker in the event of an over-load condition.
How to use: 1) Select Input Voltage 2) Plug the Line-R into Wall Outlet 3) Connect your Equipment 4) Switch ON the Line-R
The total power consumption of all equipment plugged into the Line-R must not exceed the “Maximum Output Power Capacity” rating listed in the Specifications table. A total load in excess of this rating will cause the power switch/circuit breaker to “trip”

Rank No. #2

YaeCCC ST-3000 Voltage Transformer Converter Regulator with Voltage Meter - Step Up/Down - 110V/220V - Circuit Breaker Protection

It can regulate input voltage from AC 85V-130V or 180V-260V to output voltage: AC 110V+-3-percent or AC220V+-3-percent. Meter on front shows exact output voltage.
Circuit Breaker Protection, Efficient & Lighter Weight, Thick Industrial Heavy Grade Cord.
Heavy Duty Voltage Regulator with Step Up or Down Voltage Transformer.
Multiple Sockets (2x 110V US standard & 1x 220V Universal Socket - Accept almost any plug except big S Africa).
Weight: 13.70 lbs., Dimensions: 7.75" x 9.5" x 4.50", CE Certified

Rank No. #3

Tripp Lite LC1200 Line Conditioner 1200W AVR Surge 120V 10A 60Hz 4 Outlet 7-Feet Cord White

Protects sensitive electronics, computer accessories and home theater equipment from power-related damage and performance problems
Advanced automatic voltage regulation corrects brownouts and overvoltages
Powerful 1200-joule surge protection rating. Corrects undervoltages as low as 89V and overvoltages up to 147V. Ideal for computers, routers, modems, printers, home theater components and point-of-sale equipment
1200W power capacity; 4 AC outlets; 7-ft cord
Dollar 25,000 Ultimate Lifetime Insurance; 2-year warranty

SaleRank No. #4

HARMNEE AC Motor Speed Controller, AC 100V-120V & 15A Max, AC Electric Fan Variable Speed Controller Electronic Voltage Regulator with Overload Protection Switch & Voltage LED Display Screen

♕【Technical Parameter】Input voltage: AC 100V-120V; Input max current: 15amps; Continuous current: 8amps; Resistive load: 2000W max; Inductive load: 1000W max
♕【LED Display Screen】Show the real-time output voltage, make the machine working voltage visible
♕【15A Overload Protection Switch】The switch will power off automatically when momentary current is over 15 amps to protect the controller.The switch is also with indicator light inside
♕【Multi-function Output Socket】 Fit for US standard Type A, Type B plugs perfectly. Internal copper accessories adopt thickening phosphor bronze parts to ensure safety
♕【Flame-Retardant Plastic Shell】High temperature resistance, anti-flame and safety

Rank No. #5

AITRIP 1PACK AC 110V 120V 220V 230V 10000W High Power SCR Motor Speed Controller Voltage Regulator Dimming Attemperation Thermoregulation Board

Voltage Regulation: AC 110V to 230V (Adjust begin 20V).
Maximum Power: 10000W resistance load limit power.
With thickened and enlarged radiator. Omni-directional Heat Dissipation.
Application: DIY Electric furnace, water heater, the lamps and lanterns that move light, small motor, solder iron temperature control.
Note: The product needs to be connected to the load and adjust the potentiometer to detect the output voltage change.

Rank No. #6

BSEED Surge Protector, Power Surge Protector Outlet, Voltage Regulator, Heavy Duty Whole House Wall Surge Protector for Home, Office, Travel, LED Indicator Light, Single Outlet, 120V, 15A, 2 Pack

✅Adjustable Voltage Regulator: The minimum and maximum voltage capacity of the protector is adjustable. It can be adjusted when the product is powered on. Press the "SET" key to adjust the high/low voltage protection value and delay value of the product through the "+" key and "-" key according to your needs(Adjustable position is at the side)
✅Automatic Induction Protection: The surge protector outlet protects your electrical equipment from voltage spike, momentary surge, voltage fluctuation, and brownout by interrupting the current when the voltage is too high or too low. When the voltage exceeds the limit, it will automatically cut off the power to prevent the damage to the appliance due to low or high voltage
✅All-Round Safety: The wall surge protector can take full care of your home appliances. The shell is made from PC flame retardant material, which reaches the experimental standards of level test of UL94-5VA. And, the small and wall-mountable power plug converts any standard wall outlet into a surge-protected socket with no need for extra cords with its direct wireless plug-in design
✅Digital Display Function: You can see the current working status clearly even at a long distance. Digital display of current grid voltage value and delay state time. LOP indicates that the product is currently under low voltage protection and HIP indicates that the product is currently under high voltage protection. Long press "SET" key to display the remaining repair time
✅Applicable Equipment: The power surge protector suits for air conditioners, freezers, ice makers, washing machines, ovens, microwave ovens, dishwashers, coffee machines, bread machines, water heaters, and electric fans, etc

Rank No. #7

LVYUAN Variable Transformer Variable Voltage Regulator, 0-130V Output, 110V-120V Input, (500VA)

- Adjustable transformer, Max.500VA, Input Voltage: AC 110V/60Hz, Output Voltage(Variable): AC 0-130V/60Hz
- Replaceable 5A Fuses (Extra 4 for replacement), Overload Protection, with Output Voltmeter
- Built-in copper coil, material quality, more secure and durable. The Core Components of the Transformer Are Made of Environmentally Friendly Materials. It is Odorless and Noise Free.
- What You Get: A 500VA Variable Transformer with U.S. Standard Plug, 4 Extern Replaceable 5A Fuses, A Manual.
- Suit for Motor Speed control, Label Printing Machine, EE Labs, Test for Railroad Switching, Power Supplies, Satellite, Equipment, Telecommunication Equipment.

Rank No. #8

DROK Voltage Boost Converter, DC 8-60V to 10-120V 15A 900W Numerical Control Step Up Voltage Current Adjustable Regulator Constant Module Output 48V 24V 12V Power Supply with LED Display Heat Sink

Parameter --- Input voltage: DC 8-60V; Output voltage: DC 10-120V; Input current: 0-15A; Output current: 0-15A.
Realtime LED Display & Indicators --- The transformer board is designed with bright 4-digit LED to display output voltage, current at default simple mode. By manual setting to fully functional mode, the stabilizer would show more parameters, such as power and capacity. Also the board is equipped with working indicators to show real-time working status.
Data Save --- The boost converter can save up to 10 sets of parameter settings. It’s easy to save and very convenient to call out parameters at any time you would like to.
Wide Application --- The step up power converter does great for wind power, DC generators, solar panels to charge battery, and it also can be made as a boost power supply to power devices.
Notes --- 1) No big difference between input and output voltage. Otherwise the power loss will increase then the actual output may not be as what expected; 2) Actual output current is mainly decided by the load. Converter can only set a limit on output current; 3) When powering high-power appliances, please turn off the automatic output function, correctly connect the converter, and then press the "OK" button to output. After the voltage rises to the set voltage, turn on the appliances.

Rank No. #9

ZOWZEA AC Motor Speed Controller 120V ,Variable Speed Controller & Fan Speed Controller with Rheostat,Variable Voltage Regulator Router for Electric Motors-15A 110V

This variable speed motor controller is perfect for bench testing, experimentation, industrial applications, and DIY projects, offering precise control over fan speed and voltage regulation.
The maximum power of this voltage regulator is 4000W,with AC 120-220V input and adjustable voltage output (0-220V), Rated current is 9A, can withstand a maximum current of 18A.
This motor speed controller is equipped with a new bi-directional high power SCR inside.You can easily control the speed of your motor to your desired level using the rheostat.
The output voltage of the product is a virtual voltage when there is no load. When a load (20W or more) is connected, the actual output voltage value is shown on the display.
Note: Max power limit is 1500W for inductive loads (fans, routers, soldering irons, small motors) and 4000W for resistive loads (kettles, stoves, tungsten lamps ect).

Rank No. #10

Appli Parts APVP-11EE1-3 120 V Voltage Surge Protector for Refrigerators, 50/60 Hz, 12 A, 140 joules, regulator with time delay works with all electronic appliance brands

Universal: Will Work To Protect Any Brand Of Refrigerators Or Similar Appliances
Indicators: Green Normal Voltage, Yellow Wait Cycle, Red Voltage Out Of Range
Protects: Electrical Equipment From Low Or High Voltage, Electrical Blackouts And Surges
Use: Specially Designed For Refrigerators And Freezers With Mechanical Components
Wait Time: After Every Electrical Interruptionn There Is A 3 Min Wait Period.

Rank No. #11

MELIFE AC 110V 120V 220V 230V 10000W High Power SCR Motor Speed Controller Voltage Regulator Dimming Attemperation

Specially customized SCR using imported chips,The military-grade double-layer circuit board design is not comparable to other single-layer boards.
The use of new bidirectional high-power thyristor, the limit current can reach 100 amps, which solves the problem of overcurrent caused by the resistance of the electric furnace wire being too small under cooling.
It can easily adjust the output voltage of the commercial power, -Adjustable between 220v for electrical appliances.So as to achieve the effects of dimming, temperature adjustment and pressure adjustment.
It is available for large appliances with a power consumption of less than 10,000 watts. Because the power is already very large, general household appliances or small factories are sufficient.
Inductive or capacitive load power should be reduced. This voltage regulator is equipped with a bidirectional high-power thyristor, which can be used without adding any components, which is very convenient and practical.

Rank No. #12

AVR Automatic Voltage Regulator Rectifier for Generator 5KW 6KW 6.5KW 7KW 7.5KW 8KW 8.5KW

4kw - 6.5kw AVR Replacement Generator, Automatic Voltage Regulator
Blue wire positive, yellow wire negative.
Frequency: 50/60Hz. AC Voltage Output: 160V ~ 260V for 240V output
Auto Voltage Adjusting Accuracy: ≤ ±5%.

SaleRank No. #13

Teyleten Robot AC 110V 120V 220V 230V 10000W High Power SCR Motor Speed Controller Board Dimming/Attemperation/Voltage/Regulator/Thermoregulation/SCR Controller Board

Voltage: AC 110- 220V
Maximum Power: 10000W (connected resistive load,220VAC)
Voltage Regulation: AC 10V to 220VAC
Dimensions: 130x60x45mm(LxWxH)
Rated current:25A MAX 45A

Rank No. #14

AC Variable Fan Speed Controller, SCR Voltage Controller Fit for Fan Electric Motor Router Rheostat, Variable Voltage Regulator 120V 220V 15A 4000W Max

Attributes: This is a variable voltage fan speed controller, the input voltage is AC 120-220V, the output voltage is 10-110V (adjustable), the maximum power is 4000W, the current is 15A, and the adjustable voltage range is 0-110V
Powerful Function: The voltage controller has variable thyristor and electronic voltage regulator. The maximum power of connecting inductive loads (such as fans, routers) is about 1500W, and the limit power of connecting resistive loads (such as electric furnaces, heating wires) is 4000W
High Security: No delay, surge protection, anti-spike, arc-suction multiple protection, both input and output current are AC, effectively ensuring your safety. The core chip adopts a new type of bidirectional high-power thyristor with a maximum current of 15A, which effectively solves the problem of wire overcurrent when the heat dissipation resistance is too large
High-Quality Materials: Our voltage stabilizer adopts imported high-quality chip thyristor, all-aluminum heat sink is suitable for high-temperature circuits, and adopts multi-functional industrial sockets. The copper parts are thicker inside, with high current, good contact and high safety. The fan speed control switch has a power light, and the heat dissipation connector can help quickly dissipate heat and prevent burnout
Wide Range of Applications: Our ac motor speed controller can be widely used in fans, electric furnaces, water heaters, small motors, electric irons, tungsten lamps and other electrical appliances. At present, most motors do not support voltage regulation (such as, single-phase motors, asynchronous motors, dual-value capacitor motors, etc.), which are not suitable for smart home appliances with complex circuit boards

SaleRank No. #15

Appli Parts APVP-11EE1-4 120 V Voltage Surge Protector for Refrigerators with Electronic Boards, 50/60 Hz, 12 A, 303 joules, regulator with time delay works with all electronic appliance brands

Universal: Will Work To Protect Any Brand Of Refrigerators Or Similar Appliances
Indicators: Green Normal Voltage, Yellow Wait Cycle, Red Voltage Out Of Range
Protects: Electrical Equipment From Low Or High Voltage, Electrical Blackouts And Surges
Use: Specially Designed For Refrigerators And Freezers With Electronic Circuit Bords
Wait Time: After Every Electrical Interruptionn There Is A 3 Min Wait Period.

SaleRank No. #16

AC 110V 120V 220V 230V 10000W High Power SCR Motor Speed Controller Voltage Regulator Dimming Attemperation Thermoregulation Board

【Maximum Power】 10000W resistance load limit power, room temperature for a long time is recommended to be used within 5000W
【Voltage Regulation】AC 10V to 230V (Adjust begin 20V). The original chip is specially customized SCR, all high-voltage capacitors
【Dimensions】130*60*47mm (5.12"x2.36"x1.85"). Weight: 210g (0.46lb)
【Omni-directional Heat Dissipation】 Increase and thicken heat dissipation fin, stainless steel aluminum panel for multi-directional heat dissipation
【Application】 Electric furnace, water heater, the lamps and lanterns that move light, small motor, solder iron temperature control

SaleRank No. #17

DROK Voltage Regulator DC 8-60V to 10-120V 15A Boost Converter, Constant Voltage Current Step Up Module Adjustable Output 48V 24V 12V DC Power Supply with LED Display

DC 8-60V to 10-120V 900W numerical control CC CV step up module with digital tube display, maximum current is 15A, with a fan to dissipate heat; Adopts advanced microprocessor, can regulate output voltage and current accurately, reliable and stable.
The module has two kinds of modes: simple mode and fully functional mode(simple mode by default); Uses 4 digits high brightness LED, can display output voltage, current, power and capacity and other parameters; Has OUT, CC, CV indicators, easy and convenient to check the working statues.
Simple mode: after setting the voltage and current values, pressing "OK" the module will output, then use the "↑" "↓" buttons to increase or decrease the value. At output statue, short press "ok" to switch between voltage and current display, long press for 3 seconds to turn on/off the function of displaying volt and amp in turns.
Under fully functional mode, there are three special functions: 0. Output automatically when power on; 1. Save and call out the parameters, display power and capacity; 2. Take turns to show the parameters after output automatically. you can open them by yourself.
Wide application, suitable for wind power, DC generator, solar panels to charge battery, you can also make a step-up power supply to power devices.

Rank No. #18

Pro Chaser DC-DC 120V 108V 96V 84V 72V 60V 48V Volt Voltage to 12V Step Down Voltage Reducer Regulator 180W 15A for Scooters & Bicycles Golf Cart

DC-DC 120V 108V 96V 84V 72V 60V 48V to 12V step down voltage reducer works at 180W power with 15A current. Please carefully check the working power of your battery pack. The item in current page should not be connected to any power source with power higher than 180W.
Laser print on the surface. Easy ventilation design with aluminum cast shell. Completely sealed water resistant case.
The item in current page will come with three wires. Merged ground wire for easy installation. Red wire connects to positive input, yellow wire connects to positive output, black wire goes to ground/negative end.
Internal shot circuit protection, over-voltage protection, thermal-load protection.
Reduces DC voltage for scooters, bicycles, vacuum lamp, electric snail horn, golf carts, forklifts, buses.

Rank No. #19

HARMNEE AC Electric Fan Variable Speed Controller, AC 100V-120V & 15A Max, AC Motor Speed Controller Electronic Voltage Regulator with Black-Coated Matt Metal Shell & Voltage LED Display Screen

♕【Technical Parameter】Input voltage: AC 100V-120V; Input max current: 15amps; Rated current: 8amps; Resistive load: 2000W max; Inductive load: 1000W max
♕【LED Display Screen】Show the real-time output voltage, make the machine working voltage visible
♕【Precision Voltage Control】Adopt precision potentiometer to regulate voltage to control speed, heating and light easily, accuracy up to 1 volt
♕【US 3-Pin Socket】Standard US 3-pin output socket is adopted to fit for US type A and type B plugs perfectly
♕【Black-Coated Metal Shell】 The shell is made with 0.8mm thick galvanized black-coated metal plate, sturdy, flame retardant and rust-proof

Rank No. #20

2Pcs AC 110V 120V 220V 230V 10000W Motor Speed Controller Electronic Voltage Regulator 10000W High Power SCR Dimming Attemperation Thermoregulation Board…

10000W resistance load limit power, room temperature for a long time is recommended to be used within 5000W, voltage regulation: AC 10V to 230V (adjust begin 20V), this is an easy-to-use voltage regulator that can control the brightness or speed of the light. Use a new bidirectional high-performance thyristor. The current can reach up to 100 A, and solves the problem of overcurrent caused by small resistance when the induction cooker cable is cooled.
10000W SCR voltage regulator standard aluminum housing safe and durable super power electronic voltage regulator. It is widely used in resistive loads, such as heating wires, incandescent lamps and most (not all) single-phase AC motors.
10000W speed controller operating voltage AC 110V-230V. Maximum power 10000W (resistive load), long term operating power 7000W. Voltage adjustable from AC 0V to near input voltage. Full copper 75A super large current terminal. The trigger circuit is unique, the control voltage is accurate and there is no hysteresis, the resistive load is turned off to 0, and after starting, it will be adjusted from 10V, adjust to the supply voltage that is closest to the input.
Connect the SCR voltage regulator to the front of the circuit of the electrical appliance. The ''input' and """"output"""" lines are connected (do not distinguish between zero line and firewire). Rotate the potentiometer rotary lever to achieve light and dark dimming, speed regulation, voltage regulation and temperature regulation, easy to use.Rotate the potentiometer rotary lever to achieve light and dark dimming, speed regulation, voltage regulation and temperature regulation, easy to use.
Regulator is not suitable for brushless motor. The load should not exceed the specified maximum power. Pay attention to the temperature for the first use. If the temperature is high (more than 80 ℃), please enhance heatsink. Otherwise, the module and the appliance will be burned out. If connect to inductive load or Capacitive load, the power must leave Two-thirds (2/3) margin.

Last update on 2023-10-23 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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FAQ:

Q: What does 120 volt VAC mean?

A: VAC is an electrical voltage in an alternating current circuit. The power system supplying homes and businesses in the United States uses AC 120 V, while in Europe the system uses AC 240 V. This means that in the United States, the power available at a wall outlet is 120-volt, 60-cycle AC power.

Q: What does 120 volts AC mean?

A: 120V is the AC voltage on a single hot wire in your home with respect to neutral (or ground). With resistance in the wiring in your house, this 120V will likely have dropped to 115V by the time it gets to the appliance you are powering.

Q: What is AC stabilizer?

A: Voltage Stabilizer is also called Automatic Voltage Stabilizer or AC Voltage Stabilizer or Voltage Regulator. Actually an automatic voltage stabilizer is designed to automatically maintain a constant voltage level, with protections of equipment against voltage surges, over voltage, under voltage, smoothing impulsive noise.