Quick Guide to Buying Best Variable Voltage Converter – Buyer’s Guide 2018

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Best Variable Voltage Converter
We are ready to introduce you the best variable voltage converter of the current year. Keep reading this page to see our TOP picks of the best variable voltage converter from the marketplace.

Members of our team had to buy and test hundreds of variable voltage converter from various manufacturers. The TOP list of the best variable voltage converter, which can be found below, is completely based on our own experience.

Ranking the 10 Best Variable Voltage Converter of 2018

Rating Image Name and Features Details
5.0
Uctronics Numerical Control Dc 6-55v To 0-50v 5a Step Down Stabilized Power Supply Constant Voltage Current Buck Power Converter 1. Uctronics Numerical Control Dc 6-55v To 0-50v 5a Step Down Stabilized Power Supply Constant Voltage Current Buck Power Converter
This step down voltage regulator can store m0-m9 10 groups preset value when power-down.
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4.5
Drok Dc-dc Buck Boost Converter 2. Drok Dc-dc Buck Boost Converter
Input voltage mode, output voltage mode and alternate mode.
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4.3
Drok Dc-dc Buck Converter 3. Drok Dc-dc Buck Converter (Excellent Warranty Policies)
The step down converter adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency.
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4.0
Drok Ac-dc Voltage Converter 4. Drok Ac-dc Voltage Converter
Compact size and light weight, with wiring terminal blocks, easy to install this power module.
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3.8
Seven Star SF500 500W 110v 220v 220v 110v Step Up Down Automatic Transformer Adapter 5. Seven Star SF500 500W 110v 220v 220v 110v Step Up Down Automatic Transformer Adapter
Convert 110/117/120v ac to 220/230/240v ac or 220/230/240v ac to 110/117/120v ac.
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3.5
Anesty Variac Transformer Auto AC Variable Voltage Regulator Metered Output 500VA 5Amp 0-130V 6. Anesty Variac Transformer Auto AC Variable Voltage Regulator Metered Output 500VA 5Amp 0-130V
– built-in copper coil, material quality, more secure and durable.
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3.3
Drok Lm2596s Dc-dc Buck Voltage Converter 7. Drok Lm2596s Dc-dc Buck Voltage Converter
The buck module is with 6-bit dip switch which can adjust output voltage by 0.5v every step, every switch has working indicator.
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3.3
Wokao Travel Voltage Converter 8. Wokao Travel Voltage Converter
The USA plug areas are all three prong so you can charge the bigger electronics.
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3.0
TryAce 1875W Universal Travel Adapter 9. TryAce 1875W Universal Travel Adapter
Adapter mode for dual voltage appliance, adapter mode(100-240vac, 8a max) for dual voltage (100-240v) appliance.
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3.0
DROK LM7805 DC-DC Multiple Output Linear Power Supply 10. DROK LM7805 DC-DC Multiple Output Linear Power Supply (Best for the Price)
This buck converter owns 5 different liner fixed voltage output terminals (dc 1.2v, 1.8v, 2.5v, 3.3v, 5v) and one usb 5v output, can fulfilled most of application.
Read reviews

 

 

 
 

Ease of use
5/5
 

Materials
5/5
 

Performance
5/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
5.0
UCTRONICS U5168 3.1 x 1.9 x 1.7 inches 0.64 ounces
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This dc 6-55v to 0-50v 5a step down stabilized power supply combine numerical control with analog integration. Its adjustable output range: voltage is 0-50.00v, step by 0.01v; current is 0-5.000a, step by 0.001a. Note: when the output of this step down voltage regulator is used for charging a battery or connect a capacitive load, there must be a diode in series with the output-anode, otherwise the regulator will be damaged. The 1.44 in colorful lcd monitor can display the preset voltage, input voltage, output voltage, the preset current, output current, output power at the same time. On the output state remind area, you can monitor that the key is locked or not, output is normal or not, the state of constant voltage and constant current, the current data set prompt and output opens or not. This step down voltage regulator can store m0-m9 10 groups preset value when power-down. Keep pressing m1 or m2 more than 2s, the corresponding data group will be extracted and displayed on the right of the screen.

There are four button-“m1”, “m2”, “set” and “on/off”, and a coding potentiometer. Can be used for to set the output voltage and output current on the main display interface, set the data on the data setting interface, set the protection value, adjust the brightness of screen, extract shortcut storage data group m1 or m2, etc.

 

 
PROS
This dc 6-55v
The 1.44 in colorful lcd monitor can display
There are four button-“m1”
CONS
I have not faced any problems.
 

What exactly did you take into consideration while making the list of the best variable voltage converter?

We compared hundreds of various variable voltage converter and chose TOP options with the best price/quality ratio. It was not easy, since manufacturers present new modes of variable voltage converterevery year. We made an unbiased review and used only important factors, such as prices, materials, weights, and many other things.

 

 
№ 2. Drok Dc-dc Buck Boost Converter 5v-25v to 0.5-25v 2a High Efficiency Voltage Regulator 5v 12v Variable Volt Power Supply Stabilizers with LED Voltmeter for Car Battery Fan
 

Ease of use
5/5
 

Materials
4/5
 

Performance
5/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
4.5
DROK 090638 1.6 ounces
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The starting state can be set freely by long pressing s1, three memory mode: 0, 1, 2, mean default display in or out or in/out alternate voltage. The output voltage can be higher or lower than the input voltage, turn the small screw on top of the pot to regulate the output. On the right side is another momentary switch that is for turning the output on and off, you don’t have to disconnect it to turn off whatever you have connected, more convenient to control the output. With a voltmeter, press s1 to switch among three working mode: input voltage mode, output voltage mode and alternate mode.

Adopted high-power mos tube to protect the circuit in case of connecting reversely, improve efficiency and reliability; the workmanship is excellent.

 

 
PROS
With a voltmeter
Adopted high-power mos tube
The starting state can be set freely by long pressing s1
The output voltage can be higher or lower than
CONS
Not suitable for long work.
 

What did you do to create the TOP list of variable voltage converter?

We sincerely wanted to help our readers, so our team spent many hours comparing various variable voltage converterfrom different manufacturers. It was not easy, since we had to find a way to include both cheap and expensive variable voltage converterin our rating list. That is why we decided to make the price/quality ratio the determining factor. No matter what your budget is, you can use our guide to choose the best variable voltage converter in the preferred price category.

 

 
№ 3. Drok Dc-dc Buck Converter Step Down Voltage Regulator Power Inverter Module 24v 12v to 5.2v 5a Variable Power Volt Transformer with Usb Port for Phone Mobile Fast Charging
 

Ease of use
5/5
 

Materials
5/5
 

Performance
2/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
4.3
DROK 200217 0.8 ounces
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Drok buck converter input voltage could be dc 9-36v, output voltage is 5.2v(5v-5.3v available according to your input voltage); this buck voltage regulator will be a great choice for phone fast charging. The step down converter adopts synchronous rectification scheme to provide wide voltage range, large current and high efficiency. Drok voltage regulator is user-friendly, accompany with dc interface and connecting terminals, make it easier to be connected to different devices. Compatible with android and apple – with usb interface and fast charge identifying chip, can be used to charge your phone.

 

 
PROS
Drok voltage regulator is user-friendly
Drok buck converter input voltage could be dc 9-36v
The step down converter adopts synchronous rectification scheme
CONS
Cannot be used right out from the box.
 

Is Amazone.com a good place to buy a variable voltage converter?

Nowadays, online shopping is completely safe. In fact, it might even be safer than regular shopping, since you do not have to leave your home to buy products you need. There is nothing dangerous in buying variable voltage converter. After all, you can always get a refund if you will not like the model you bought or you received it in a malfunctioning condition.

 

 
№ 4. Drok Ac-dc Voltage Converter, Ac 110-220v to Dc 12v 10.5v-13.5v Module 100w 8.5a Volt Regulator Switching Power Supply Board with Aluminum Shell Case
 

Ease of use
5/5
 

Materials
4/5
 

Performance
3/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
4.0
DROK 2001709004 14.4 ounces
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Strong protect function: over-load protection, over-voltage protection, over-current protection, short-circuit protection, with them, it will be much more safer to operate this power supply switch. Compact size and light weight, with wiring terminal blocks, easy to install this power module. Widely used in light strips, led billboards, led display, luminous characters, monitoring and so on. Wide input range of ac110-220v, default output voltage is dc 12v.8.3a and can be adjusted from 10.5-13.5v, output power is 100w. Equipped with dual power tube, large-capacity capacitors, pure copper transformer and emi filter, these solid components make it work more stable and efficiently.

 

 
PROS
Compact size
Strong protect function
Widely used in light strips
Wide input range
CONS
It is difficult to carry around.
Starts to tear apart after a month of use.
 

 

 
 

Ease of use
4/5
 

Materials
2/5
 

Performance
4/5
 

Value
5/5
 
Overall Brand Model Dimensions Weight Details
3.8
Seven Star SF500 8.5 x 3 x 3.5 inches 4.05 pounds
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Output voltage led indicator, no need to set the input voltage – connect to any outlet in the world. Thermal fuse protection with reset button (no need to replace fuses). Convert 110/117/120v ac to 220/230/240v ac or 220/230/240v ac to 110/117/120v ac. Universal output socket – accept most plug types from around the world. This is a 500 watts converter for portable use. If the product is using higher or close to 500 watts it needs a higher power voltage converter.

 

 
PROS
Thermal fuse protection
This is a 500 watts converter
Convert 110/117/120v ac
Output voltage led indicator
Universal output socket
CONS
The instruction manual has many mistakes.
Professionals will not find it useful.
 

 

 
 

Ease of use
2/5
 

Materials
5/5
 

Performance
3/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
3.5
Anesty 7.1 x 8.7 x 8.3 inches 8.8 pounds
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– enclosed, non-isolated, adjustable transformer, with output volt meter. On/off power switch(lighted).5a fuse & power cord. -variac is a variable transformer and a great device for quality control testing, equipment testing on low and high voltage, control over heat, speed, and more. – suit for home coffee roasting, motor speed control, label printing machine, ee labs, test for railroad switching, power supplies, satellite, equipment, telecommunication equipment. – built-in copper coil, material quality, more secure and durable. High efficiency and with no waveform distortion. – over-voltage protection, the use of more security.

 

 
PROS
-variac is a variable transformer
CONS
It is made from cheap and flimsy materials.
 

 

 
№ 7. Drok Lm2596s Dc-dc Buck Voltage Converter Module 5v-36v Step Down to 1.5v-33v Voltage Regulator 3a Volt Transformer Diy Switch Power Module
 

Ease of use
2/5
 

Materials
3/5
 

Performance
4/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
3.3
DROK 2001708002 1.12 ounces
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Note: the trimming potentiometer has been adjusted, so users could directly turn dip switch to set by 0.5v every step. If users adjusted the trimming potentiometer when they received it but they need 0.5v stepping value, at this time, users should adjust it back then it will work as normal. Special design: the buck module is with 6-bit dip switch which can adjust output voltage by 0.5v every step, every switch has working indicator; it is also with trimming potentiometer, users can set the output voltage at the range of 1.5v-33v easily and quickly. Lm2596 chip: drok step-down converter adopts lm2596s-adj high quality chip, offers flexible performance. Drok voltage reducer input voltage range is 5v-36v, output voltage range is 1.5v-33v, max output current is 3a, rated output current is 2a.

 

 
PROS
Special design
Lm2596 chip
Drok voltage reducer input voltage range is 5v-36v
CONS
Inconvenient to use.
Cannot be used as a universal product.
 

 

 
№ 8. Wokao Travel Voltage Converter 220v to 110v Power Converter 200w Power Strip with 3 Outlets (uk Au Eu) and 4 Smart Usb Charging Ports for Iphone X Iphone 8 8 Plus Samsung Ipad Tablet
 

Ease of use
3/5
 

Materials
2/5
 

Performance
4/5
 

Value
4/5
 
Overall Brand Model Dimensions Weight Details
3.3
WOKAO 1.52 pounds
Check Price

200w power converter: please make sure that total wattage all the devices you use is less than 200w in order to avoid over-heating or damage. Please don’t use this power converter to power your hair dryer, hair straightener or curling iron. Wokao power converter will cover all of your travel needs, it has 3 outlets and 4 usb ports and 3 international adapters(uk/us/au/eu plug) which lets you plug it to almost any country in the world. Compace design & easy to carry: compact size (6x3x1.57 inches) with 5.1ft detachable power cable, slim and sleek design, makes it easy to pack and take anywhere you go. Safety assurance: designed with surge protection, over-heated, over-current, over-voltage, output short-circuit, over-load protection. Built-in auto shut-off protection in case of over voltage / over current / short circuit / over temperature / over load and surge protection, to ensure your devices safely. 3 international voltage adapter: it comes with 3 international adapters(uk/us/au/eu plug) to plug in multiple devices, support outlets in north america, united kingdom, europe, australia, japan, china, etc. More than 150 countries worldwide. Even if you only use this domestically, it is still worth it just for charging.

4 smart usb charging ports: the USA plug areas are all three prong so you can charge the bigger electronics. 4 usb outlets and other plug outlets can be utilized simultaneously for laptop, bluetooth speaker, electric toothbrush, game console, kindle, ipad, smartphone and other electronic devices. 2.4a max for each ports enable you charge devices in short time. 4 usb ports (8a max) are placed strategically for your convience.

 

 
PROS
Safety assurance
Compace design & easy
3 international voltage adapter
4 smart usb charging ports
200w power converter
CONS
Use this product with a protective cover unless you want to break it.
Warranty period is hilariously low.
 

 

 
№ 9. TryAce 1875W Universal Travel Adapter and Converter Combo 220v to 110v International Voltage Converter for Hair Dryer, All In One Plug 8a Max Adapter Wall Charge for Uk Au Us Eu
 

Ease of use
3/5
 

Materials
4/5
 

Performance
2/5
 

Value
3/5
 
Overall Brand Model Dimensions Weight Details
3.0
TryAce current converter for travel
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Adapter mode for dual voltage appliance, adapter mode(100-240vac.8a max) for dual voltage (100-240v) appliance. Such as iphone charger, ipad charger, power supply of macbook and laptop etc. Warning,: please read the introduction and description carefull before using this product. Unconditional lifetime warranty without any other costs needed. Fast and easy-to-reach customer service to solve your problems within 12 hours. Very safe, tryace universal adapter and converter built-in fuse and surge protections, to avoid over-current and overload high-temperature, short-circuit damage appliances. Converter mode for high power non-electric control appliances, tryac1875w world travel adapter and converter combo can step down the voltage from 220v to 110v and ensure safe operation of your product. Notice: it can’t work for electronic control product. It can’t set up the voltage from 110 to 220v.

Easy to use, all in one international travel plug adapters (uk/us/au/eu plug) that fits power outlet in most commonly visited countries, over 150 countries like most of europe, argentina, ireland, israel, italy, uk, france, european, australia, china, hongkong, etc. Plugs: type a, type c, type e, type f, type g, type i and type n.

 

 
PROS
Adapter mode
Converter mode
CONS
Requires professional maintenance.
 

 

 
№ 10. DROK LM7805 DC-DC Multiple Output Linear Power Supply, Dc 6-9v to 1.2v 1.8v 2.5v 3.3v 5v 5-way Step Down Voltage Regulator Module Board, 1a Variable Volt Buck Converter with 5v Usb Output
 

Ease of use
2/5
 

Materials
5/5
 

Performance
2/5
 

Value
3/5
 
Overall Brand Model Dimensions Weight Details
3.0
DROK 300424 0.96 ounces
Check Price

Multiple protection: this transformer voltage has thermal overload protection and short-circuit protection, effectively protect the board from damaging. High quality lm7805 chip, our volt regulator is equipped with good-performance and high-quality lm7805 chip, which make the output more stable and accurate. 5-way different output: this buck converter owns 5 different liner fixed voltage output terminals (dc 1.2v.1.8v.2.5v.3.3v.5v) and one usb 5v output, can fulfilled most of application.

 

 
PROS
High quality lm7805 chip
Various input
Multiple protection
5-way different output
CONS
Looks awful.
 

Are new variable voltage convertersupposed to be expensive?

The best variable voltage converterare not always the most expensive. However, the bigger the price is — the better the quality of a product. This rule is also applies to variable voltage converter, so if you want to get a good model we recommend you to not be too stingy.

What do I have to do in order to get a refund for a variable voltage converter?

Most of the time seller will return your money without any trouble. If you received a malfunctioning variable voltage converter, you will easily get a refund or a replacement. Nonetheless, if you value your time, we highly recommend you to thoroughly check the item’s description before making a purchase.

What are the price limits for decent variable voltage converter?

Price is a very important factor of any variable voltage converter. Usually, the higher it costs the better its quality. However, we recommend you to consider all characteristics of a variable voltage converter. There are many models with an average price tag that can compete with the most expensive options.

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