The 10 Best Bench Power Supplies in 2020 – Ultimate Buying Guide

If you are an electrician, technician, lab researcher, or your job requires a lot of work that is related to electronics, you need equipment that can provide a stable and reliable source of power.

It would be more practical to use if you can convert the power into different voltages; a bench power supply is an ideal and functional equipment that you need, particularly for development and circuit test.

The marketplace offers an immense selection of bench power supplies that vary according to the brand and specifications. If you still can’t find the equipment that will assist you with all your electric and power supply needs, our list of the Top 10 Best Bench Power Supplies in 2020 will help you out.

These are the 10 Best Bench Power Supplies in 2020

Last update on 2020-03-17 / Affiliate links / Images from Amazon Product Advertising API

To help you find the most reliable equipment for power supply, we’ve listed the Top 10 Best Bench Power Supplies in 2020.

10. Flexzion DC Compact Power Supply

Flexzion DC Compact Power Supply 15V 1A - Adjustable Variable Regulated Digital Precision Equipment

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If you are looking for a reliable power supply for communication maintenance, this equipment from Flexzion might be the ideal option. It features a variable of 0-15V and current of 0-1A which is high-quality.

You can use it for cell phone and other communication equipment maintenance. It offers an output voltage and current that are progressively adjustable with the rated range. As you see, it is an adjustable regulated power supply that provides stable power.

There is also a digital display where you can view the settings or the number of volts. It is engineered with circuit overload protection and low noise. With all the high-quality components, it functions the way it is designed for and sensitive to light alarm and sound. It is compact, lightweight, and portable.

Key Features
  • Supply Voltage: AC 110V
  • Frequency: 60Hz
  • Storage Conditions: -20 degrees Celsius ~ 80 degrees Celsius
  • Output Voltage: 0-15V,0- 1A
  • Less than or equal to 0.01 percent + 2mV
  • Load Stability: less than or equal to 0.01 percent + 2mV
  • Ripple Noise: less than or equal to 1 MVRMS(RMS)

9. Yescom DC Power Supply

Yescom 110V AC 30V 10A DC Power Supply Precision Variable Digital Adjustable

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Home electronics enthusiasts and DIYs might find this next bench power supply on our list. It is designed with a digital display where you can view the settings for volts and current.

The buttons and dials are all laid out in a simple interface which allows you to control the power supply that you need very easily.

It comes with an operation mode for constant voltage and constant current and has many protections for over voltage, open circuit and over temperature.

The safety features assure you for safe and secure operation when you have some fixing to do or work to do that’s related to electronics. Because of its efficiency and reliability of power source, you can use it for 24 hours with a full load.

It is also engineered with an intelligent temperature control fan to adjust the speed depending on the load situation.

Key Features
  • Input voltage: 110V±10% 60Hz
  • Output voltage: DC 0-30V Continuous adjustable
  • Output current: DC 0-10A Continuous adjustable
  • Display resolution: voltage: 0.1V , current 0.1A.
  • Voltage stabilization: 0.05% +1mV
  • Current stabilization: 0.1% +10mA
  • Load stabilization: CV 0.1% +1mV / CC 0.1% +10mA
  • Ripples and noises: CV 10 mV(RMS)/ CC20mA(RMS)
  • Power Supply: 110V AC
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8. Dr.meter DC Power Supply

Dr.meter DC Power Supply 50V 20A High Current Switching Single-output 1000W

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If you need a stable source of power supply for general purposes or equipment that you can bring at the back of your car, this bench power supply from Dr. Meter is another excellent option to consider.

It is a switching type of power supply that provides smaller, lighter, and efficient power supply. This bench power supply offers a maximum DC power of 1000W which is one of the most stable and power supply that you can find.

It features two levels of control for current and voltage outputs. As you can see, it is designed with two LED displays that allow you to view the readings for voltage and current. It also has a dark back light so you can read the digital readings clearly.

Key Features
  • It has 2 level of control for both current and voltage outputs
  • Outputs: Adjustable at 0-50 V and 0-20 A
  • Input voltage: 110V AC
  • Line regulation: CV <= 0.02% + 3 mV, CC <= 0.5% + 3 mA
  • Load Regulation: CV <= 0.02% + 10mV, CC <= 0.5% + 10 mA
  • Ripple noise: CV <= 10 mV RMS, CC <= 10 mA RMS
  • Protection: constant current and short-circuit protection

7. Lavolta Variable Linear DC Bench Power Supply

Lavolta Variable Linear DC Bench Power Supply

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If you prefer the linear type that produces heavier power supply, you can go for the Lavolta linear bench power supply.

This best-selling power equipment is engineered with safety features that allow you to use it whenever you need to accomplish a project safely with a stable power supply.

You can use for repair workshops, laboratories, research facilities, test teams, or anything related to electronics. It is designed with a rugged, reinforced metal frame that promotes durability.

It is also compact and features an ergonomic handle so you can transport it from one place to another at ease.

Lavolta Bench Power Supply comes with a cooling fan, overload, and short circuit protection that are all programmed to function automatically.

Key Features
  • Input: 220V / 110V ± 10% 50Hz/60Hz
  • Current regulation working condition: < 0.2%+3mA power stability; load stability < 0.2%+3mA
  • Voltage regulation working condition: < 0.01%+3mV Power stability; < 0.01%+3mV Load stability
  • Has an ergonomic handle
  • Compact design
  • Provides stable and reliable power supply
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6. Eventek KPS305D DC Power Supply

DC Power Supply Variable, Eventek KPS305D Adjustable Switching Regulated Power Supply

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If you prefer compact and lightweight equipment for all your electrical and power needs, this DC power supply variable from Eventek is a good option to consider. It is a switching regulated type of power supply which is lightweight but produces a heavy output.

It is designed with multiple protections such as limit current, thermal, voltage overload, and short circuit. This ensures a safe and secure operation whenever you need the power supply.

Since it is a switching type, the noise is reduced and to prolong the life of the product, and it is engineered with intelligent temperature control with a built-in thermo-sensor.

You can use for all your scientific research, laboratory work, schools, and electronic production lines.

Key Features
  • Output voltage: DC 0-30V Continuous adjustable
  • Output DC Current: 0V – 5A
  • Overall efficiency: ≥89%
  • Display resolution: voltage: 0.1V , current 0.01A
  • Voltage and Current adjustment
  • Voltage regulation: CV 0.1% + 3mV, CC &lt; 0.5% + 6 mA
  • Protection: High current limiting and cooling fan
  • Load stabilization: CV 0.5% +1mV / CC 0.5% +3mA

5. RSR Electronics 01HY3005F-3 Triple Linear DC Power Supply

RSR Electronics 01HY3005F-3 Triple Linear DC Power Supply

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While most of the bench power supplies you see on the market have two outputs, this RSR linear DC power supply offers three outputs to provide you the power you need. The two outputs are adjustable while the third one is fixed. These settings allow you to customize and program the power supply according to what you really need for your developments, electronics, and other projects.

This linear equipment comes with an LED display with four colors so you can view the details more clearly. For the two outputs, you can choose whether to use them as independent, series or parallel mode.

Key Features
  • Dual adjustable outputs: 0-30V and 0-5A
  • Adjustable and fine controls for: 0-5V and 0-3A
  • Line regulation: CV &lt;= 0.01% + 2 mV, CC &lt;= 0.2% + 2 mA&gt;
  • Load Regulation: CV &lt;= 0.01% + 3mV, CC &lt;= 0.2% + 3 mA
  • Display reading accuracy: +/-1% for voltage and +/-2% for current
  • Ripple and noises: ≤ 0.5%V P-P
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4. KORAD KD3005D – Precision Variable Adjustable DC Linear Power Supply

KORAD KD3005D - Precision Variable Adjustable 30V, 5A DC Linear Power Supply

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For a compact linear power supply, this equipment from KORAD might be the handy assistant you’re looking for. It has got a digital display where you can view the value of the current and voltage.

Although linear power supplies are known for high-frequency noise and ripple, Korad designed this unit otherwise. The settings are also easy to control with the use of the knob lock function.

It is engineered with a 10 MV/1A high accuracy and resolution and an encoder-controlled fine and coarse adjustment. To prolong the life of the equipment, this equipment comes with an intelligent temperature-controlled fan.

Key Features
  • Input Voltage: AC 110-220V/ 50-60HZ
  • Voltage/ Current Range: 0-30V/ 0-5A
  • Setup Resolution: Voltage: 10MV / Current: 1MA
  • Low noise and ripple
  • Has knob lock function
  • Compact and lightweight
  • Designed with a completely digital control

3. Dr.meter DC Power Supply with Alligator Cable and Power Cord

Dr.meter 30V 5A DC Power Supply with Alligator Cable and Power Cord

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Down to our third spot is another bench power supply from Dr. Meter. For those who need a stable power supply for industrial and home use, this equipment might be the one that will provide your power needs.

It offers a maximum output of 30 volts and current up to 5 amps. With such power, you can use this equipment for science projects, laboratory work, or as a testing tool.

This equipment features turning knobs that easily lock and unlock output. It also has a safety feature that protects the equipment from damages caused by fluctuations. It is designed with a 4-digit LED display that allows you to view the settings for the output current and voltage value.

Key Features
  • Input Voltage: AC 115V ± 10% 60Hz ± 2Hz
  • Output DC Voltage: 0~30 V
  • Output DC Current: 0~5 A
  • Voltage Line Regulation: CV = 0.01% + 1mV CC =0.2% + 1mA
  • Load Regulation: CV = 0.01% + 5mV CC = 0.2% +5mA
  • Ripple and Noise: CV = 3m Vr.m.s CC =3m Ar.m.s
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2. Dr.meter 30V/5A DC Bench Power Supply
Bench Power Supply Single-Output

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If you want an affordable but reliable bench power supply, this equipment from Dr. Meter can be the one that will suit your needs. It is a linear type of power supply that is continuously adjustable with high stability, high reliability, and low noise.

With the stable power it provides, this equipment can be used for production lines, school electronics, laboratory work, communication maintenance, scientific research and many more.

This bench power supply is engineered with an automatic cooling fan and overload and short circuit protection. It is functional and can be operated as a source of constant voltage or constant current.

Key Features
  • Single output, single phase
  • 110V/220 ±10% input voltage, dual-input voltage.
  • Output constant current adjustable
  • Output constant voltage adjustable
  • 3LED voltage and current display
  • mA and A converted display which controlled by a button.
  • Constant voltage and current operation model

1. Tekpower TP3005T Variable Linear DC Power Supply

Tekpower TP3005T Variable Linear DC Power Supply

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To sum up our list with the top bench power supply, we’ve got reliable equipment from Tekpower. It is a linear power supply where it produces heavy output although it is lightweight and compact.

It is engineered with two operational modes; constant voltage and constant current. There is also a cooling fan automatic activation which is by built-in thermo-sensor.

Since Tekpower is a linear type of power supply, this equipment is preferably used for laboratory projects and industrial use.

It offers a maximum output voltage up to 30 volts and up to 5 amps of current. And to make it much easier for you to set the adjustments, it has rotary switches for voltage and current. The back-lit LED display, on the other hand, allows you to view the readings.

Key Features
  • Output DC Voltage: 0.0V – 30.0V
  • Output DC Current: 0.00V – 5.00 A
  • Input Voltage: 110V/AC, 60Hz
  • Voltage and Current adjustment
  • Voltage regulation: CV &lt; 0.01% + 3mV, CC &lt; 0.2% + 6 mA
  • Load regulation: CV &lt; 0.01% + 3mV, CC &lt; 0.02% + 3mA
  • Ripple and noises: CV &lt; 1 mV rms, CC &lt; 3 mA, rms
  • Protection: High current limiting and cooling fan.

How to Choose the Best Bench Power Supplies

There are a lot of factors to consider when choosing a bench power supply. This desktop unit offers a lot of technical features that need to be thoroughly examined.

If you consider the specifications and the other significant details that you’re looking for power supply equipment, you’ll end up with a high-quality and reliable source of power for all the work you need.

1. FUNCTIONAL FEATURE: The functional feature refers to the changes and measurements of the output voltage and the input voltage. It is categorized into five kinds: regulated power supply, unregulated power supply, adjustable power supply, adjustable regulated power supply, and isolated power supply.

  • Regulated power supply – It converts the unregulated AC to constant DC to provide a stable voltage.
  • Unregulated power supply – It provides a specific amount of voltage at a particular amount of current. Hence, produces a constant or stable amount of power.
  • Adjustable power supply– The name itself explains how this functions. Since it is adjustable, the output voltage or current is permitted to be programmed or adjusted.
  • Adjustable Regulated power supply – It is a combination of a regulated and adjustable power supply. The power is regulated and adjustable.
  • Isolated power supply – This is commonly used for medical electrical equipment. The power output does not have a connection with the power input. Unlike most power supplies where the input and output are dependent on each other, it stands alone.

2. POWER CONVERSION METHOD: It comes in two types: the linear and switching power supplies. These two types define the conversion process of the input power. The linear power supply regulates the output voltage by dropping or dissolving all the power that results in a heavier power supply. However, linear power supply results in lower efficiency of energy as it generates a lot of heat. But it doesn’t create so much noise and ripple.

In contrast, switch-mode or switching power supply goes through another process where the AC line is converted to a DC voltage to a higher frequency of AC signal. Unlike linear power supply, it results in a lighter and smaller power supply. However, it can generate high-frequency noise. But if you prefer lightweight, efficient and compact power supply, switching or switch-mode is the ideal option.

3. OTHER SPECIFICATIONS: Aside from these features, it would also be better if you check the number of channels, the load regulation, line regulation, efficiency, constant voltage, constant current, the display, the weight, and portability. Where you would use it is another great consideration to determine what bench power supply matches your preference. Considering all these features, you can narrow down your choices and find the one that best suits your needs.


There are a lot of options to choose from when it comes to bench power supplies. Although they vary in brands and specifications, there are high-quality bench power supplies that do stand out and will definitely suit your needs whether you use it for home or industrial use or any projects related to electronics.

Our list uncovers the best-selling brands that you can find on the market. We’ve provided comprehensive reviews and specifications that will help you come up with the best decision. If you’ve got any questions or concerns, don’t hesitate to share them through the comment box below!