Looking for a reliable variable DC power supply? Dive into the world of top-notch companies offering versatile DC power supplies. From precision control to robust performance, these firms’ power supplies cater to diverse needs across applications. Explore the best sellers of DC variable power supply and power up your devices.

SIGLENT TECHNOLOGIES
SIGLENT TECHNOLOGIES stands at the forefront of research and development, engineering, manufacturing, sales, and service support for electronic test and measurement equipment. They integrate innovative features and functionality with an unwavering dedication to quality and performance.
SIGLENT Adjustable Triple Output Power Supply

The Siglent SPD3303X-E DC Power Supply features an intelligent temperature-controlled fan for noise reduction and three isolated outputs for versatile use. Built-in output short-circuit and overload protection ensures safety, while remote programming is supported.
KUNGBER
KUNGBER team embarked on a mission to revolutionize industries with premium DC power supplies, crafted with meticulous attention to detail to surpass standards. Fueled by a dedication to perfection, every Kungber product epitomizes advanced technology and engineering expertise, ensuring excellent performance.
KUNGBER Benchtop Variable DC Power Supply

The Kungber SPS305 DC Power Supply boasts exceptional precision with a high resolution of 0.01V and 0.001A. Its adjustment knobs allow easy tuning of voltage and current to desired levels, while constant voltage/current mode ensures stable performance despite load variations.
WANPTEK
WANPTEK specializes in designing, developing, manufacturing, and selling a wide range of DC regulated power supply. Their extensive experience and expertise in power supply research and development, coupled with rigorous production testing, are highly respected by both the industry and customers alike.
WANPTEK Adjustable Bench Power Supply

The Wanptek WPS3010H Adjustable DC Power Supply automatically computes power from voltage and current inputs, showing them on its high-definition four-digit digital display. Its bright digital display ensures visibility even in dim environments.
KORAD TECHNOLOGY
KORAD TECHNOLOGY is a modern science and technology enterprise specializing in the development of digital control and programmable DC power supplies, high power supplies, and switching power supplies. With a focus on power supply research, KORAD’s engineers possess extensive experience in the field.
KORAD Variable Programmable DC Power Supply

The Korad Power Supply KD3005D is equipped with a clear 4-digit LED screen for displaying voltage and current values, along with a panel lock feature to prevent undesired adjustments. It offers constant voltage and current settings with minimal ripple and noise, ensuring high reliability and accuracy.
EVENTEK
EVENTEK team consistently prioritizes quality and reliability in DC power supplies, dedicated to crafting a range of units with enhanced safety, precision, and efficiency. This makes their power supplies the best choice for laboratory and industrial applications, ensuring optimal performance and peace of mind for users.
EVENTEK Adjustable Switching Power Supply

The Eventek KPS3010D DC Power Supply utilizes superior materials and upgraded structure to improve its reliability and accuracy. To ensure safety, the power supply undergoes rigorous manufacturing and testing processes, and incorporates features such as short circuit protection, thermal protection, and overload protection.
RIGOL TECHNOLOGIES
RIGOL endeavors to fulfill the needs of scientists and electronic product developers by offering DC power supplies characterized by superior quality and best value. Guided by a harmonious blend of craftsmanship and technical proficiency, RIGOL delivers advanced instruments that provide professional users and makers alike with a user-friendly experience.
RIGOL Variable Linear DC Power Supply

Rigol Power Supply DP832 integrates various features such as output analysis, monitoring, and preset setting, enabling comprehensive monitoring and analysis capabilities. With a rapid response time of under 50uS, it meets users’ needs for quickly changing voltage waveforms. Additionally, its low noise design caters to users’ demands for high purity power supply.
NANKADF
NANKADF specializes in manufacturing high-quality DC power supplies. With a focus on innovation and excellence, the company leverages proprietary R&D patents and operates a state-of-the-art production facility. Their commitment to continuous improvement ensures that they stay at the forefront of technological advancements in the field.
NANKADF Variable Bench Power Supply

Nankadf power supply 120V offers a range of convenient features to enhance user experience and ensure safety. Its output button helps prevent accidental damage to loads by ensuring that the output is turned off when not in use. The OCP function safeguards both the power supply and connected loads from potential damage. Also, with its integrated 18W fast charging port, users can quickly charge their devices whenever needed.
ETOMMENS
ETOMMENS owns a 4000 cubic meter factory equipped with state-of-the-art production equipment, boasting a monthly production capacity exceeding 10,000 units of DC power supplies. As a professional manufacturer in this field, we maintain a highly skilled development team and establish solid partnerships with numerous research and development institutions. Proficient in various operating systems, hardware, programming, and communication technologies, we have successfully developed a wide array of high-quality variable DC power supplies.
ETOMMENS Variable DC Power Supply For Sale
Bench DC Power Supply
ETOMMENS benchtop power supply is engineered to provide stable DC voltage to electronic circuits and devices throughout the development, testing, and troubleshooting phases. Unlike conventional bench power supplies, our benchtop power supplies enable users to finely adjust the output voltage within a designated range, typically using encoder knobs. This capability sets it apart from standard bench power supplies, providing versatility across a range of applications.
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Programmable DC Power Supply
ETOMMENS programmable power supply, also referred to as digitally controlled power supply, provides accurate and adjustable voltage and current levels, allowing precise control over desired parameters. Widely utilized in electronic device testing and research, these DC power supplies play a pivotal role.
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High Voltage DC Power Supply
ETOMMENS high voltage power supply is an electrical apparatus engineered to supply direct current (DC) at elevated voltage levels. Renowned for its output voltage stability, it finds versatile applications across scientific research, industrial production, medical equipment, communication devices, and various other sectors. With its capacity for precise output control, it meets a wide range of needs in these fields.
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High Precision DC Power Supply
ETOMMENS high precision power supply can be interfaced with a computer via communication ports, meeting users’ needs for automated testing and control. Its software commands adhere to the SCPI command format, enabling users to develop their own applications for automated testing and control with ease. Boasting superior features, these power supplies are widely used in numerous areas such as laboratory research, aging tests, and electronic maintenance.
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ETOMMENS DC Power Supplies By Specification
By Voltage
- 15V DC Power Supply
- 20V DC Power Supply
- 30V DC Power Supply
- 50V DC Power Supply
- 60V DC Power Supply
- 80V DC Power Supply
- 100V DC Power Supply
- 120V DC Power Supply
- 150V DC Power Supply
- 200V DC Power Supply
- 220V DC Power Supply
- 250V DC Power Supply
- 300V DC Power Supply
- 400V DC Power Supply
- 500V DC Power Supply
- 600V DC Power Supply
- 800V DC Power Supply
By Current
- 5A DC Power Supply
- 10A DC Power Supply
- 15A DC Power Supply
- 20A DC Power Supply
- 30A DC Power Supply
- 60A DC Power Supply
By Wattage
- 300W DC Power Supply
- 400W DC Power Supply
- 600W DC Power Supply
- 1000W DC Power Supply
- 1200W DC Power Supply
- 1500W DC Power Supply
Popular DC Variable Power Supplies
eTM-5002C, 2-Kob High Power DC Bench Power Supply Adjustable 500V 2A with 5 Powerful Protections, Output Switch Control, Low Noise
USD$ 899.00Original price was: $ 899.00.USD$ 659.00Current price is: $ 659.00.eTM-3050U, 3U Programmable DC Power Supply 30V 50A with 4-Digits LED Display, Output Switch Control, Low Noise Intelligent Cooling Fan
USD$ 1,099.00Original price was: $ 1,099.00.USD$ 759.00Current price is: $ 759.00.eTM-2050U, 3U Programmable DC Power Supply 20V 50A with 4-Digits LED Display, Output Switch Control, Low Noise Intelligent Cooling Fan
USD$ 899.00Original price was: $ 899.00.USD$ 659.00Current price is: $ 659.00.eTM-6020C, 2-Kob High Power Switching DC Bench Power Supply Variable 60V 20A with Encoder Knob, RS232/485/USB (Optional) Interface, Multiple Protections
USD$ 899.00Original price was: $ 899.00.USD$ 549.00Current price is: $ 549.00.eTM-30200C, 2-Kob High Power 30V 200A Adjustable Switching Regulated DC Bench Power Supply with 4-Digits LED Display, Encoder Adjustment Knob, Output Control
USD$ 2,199.00Original price was: $ 2,199.00.USD$ 1,648.00Current price is: $ 1,648.00.eTM-8006, 4-Kob 0-800V 0-6A High Power Bench DC Power Supply Variable with 4 Digits LED Display, Encoder Coarse & Fine Adjustments Knob, Short Circuit Protection
USD$ 2,699.00Original price was: $ 2,699.00.USD$ 1,799.00Current price is: $ 1,799.00.eTM-12010, 4-Kob High Power 0-120V 0-10A Adjustable DC Bench Power Supply with 4-Digits LED Display, Coarse and Fine Adjustments, Low Noise Cooling Fan
USD$ 999.00Original price was: $ 999.00.USD$ 499.00Current price is: $ 499.00.eTM-L3001SPV+, High Precision 300V 1A Adjustable Linear DC Power Supply with 6-Digits VFD Display, CV/CC Mode Automatic Conversion
USD$ 2,559.00Original price was: $ 2,559.00.USD$ 1,749.00Current price is: $ 1,749.00.eTM-8006C, 2-Kob High Power DC Bench Power Supply Adjustable 800V 6A with 5 Powerful Protections, Output Switch Control, Low Noise
USD$ 2,999.00Original price was: $ 2,999.00.USD$ 1,899.00Current price is: $ 1,899.00.eTM-1005C, 2-Kob 100V 5A High Power Variable DC Benchtop power supply with Output Enable/Disable Button, CV/CC Mode Automatic Conversion, Intelligent Cooling Fan
USD$ 859.00Original price was: $ 859.00.USD$ 459.00Current price is: $ 459.00.eTM-30150C, 2-Kob High Power 30V 150A Adjustable Switching Regulated DC Bench Power Supply with 4-Digits LED Display, Encoder Adjustment Knob, Output Control
USD$ 1,899.00Original price was: $ 1,899.00.USD$ 1,349.00Current price is: $ 1,349.00.eTM-30100C, 2-Kob High Power 30V 100A Adjustable Switching Regulated DC Bench Power Supply with 4-Digits LED Display, Encoder Adjustment Knob, Output Control
USD$ 2,499.00Original price was: $ 2,499.00.USD$ 1,099.00Current price is: $ 1,099.00.eTM-3060C, 2-Kob High Power 30V 60A Adjustable Switching Regulated DC Bench Power Supply with 4-Digits LED Display, Encoder Adjustment Knob, Output Control
USD$ 1,099.00Original price was: $ 1,099.00.USD$ 699.00Current price is: $ 699.00.eTM-15100C, 2-Kob High Power 15V 100A Adjustable Switching Regulated DC Bench Power Supply with 4-Digits LED Display, Encoder Adjustment Knob, Output Control
USD$ 899.00Original price was: $ 899.00.USD$ 649.00Current price is: $ 649.00.eTM-6020, 4-Kob High Power Variable Benchtop DC Power Supply 0-60V 0-20A with RS232/485/USB (Optional) Interface, Coarse and Fine Adjustments, Output Control
USD$ 899.00Original price was: $ 899.00.USD$ 549.00Current price is: $ 549.00.eTM-6010, 4-Kob High Power Variable Benchtop DC Power Supply 0-60V 0-10A with RS232/485/USB (Optional) Interface, Coarse and Fine Adjustments, Output Control
USD$ 749.00Original price was: $ 749.00.USD$ 459.00Current price is: $ 459.00.Hot Sale Variable DC Power Supplies
eTM-2050U, 3U Programmable DC Power Supply 20V 50A with 4-Digits LED Display, Output Switch Control, Low Noise Intelligent Cooling Fan
USD$ 899.00Original price was: $ 899.00.USD$ 659.00Current price is: $ 659.00.eTM-8006, 4-Kob 0-800V 0-6A High Power Bench DC Power Supply Variable with 4 Digits LED Display, Encoder Coarse & Fine Adjustments Knob, Short Circuit Protection
USD$ 2,699.00Original price was: $ 2,699.00.USD$ 1,799.00Current price is: $ 1,799.00.eTM-5002, 4-Kob 0-500V 0-2A High Power Bench DC Power Supply Variable with 4 Digits LED Display, Encoder Coarse & Fine Adjustments Knob, Short Circuit Protection
USD$ 999.00Original price was: $ 999.00.USD$ 648.00Current price is: $ 648.00.eTM-K6010SPL+, High Precision 60V 10A Switching DC Power Supply Programmable with 6-Digits Color Screen, Low Noise Smart Cooling Fan
USD$ 2,349.00Original price was: $ 2,349.00.USD$ 1,189.00Current price is: $ 1,189.00.eTM-K6010SP+, High Precision 0-60V 0-10A DC Programmable Switching Power Supply with 6-Digits Blue Screen, Encoder Adjustment Knob
USD$ 1,499.00Original price was: $ 1,499.00.USD$ 999.00Current price is: $ 999.00.eTM-L605SPV, High Precision DC Linear Power Supply Adjustable 60V 5A with 5-Digits VFD Display, Built-in Buzzer, One-Click Lock Key
USD$ 899.00Original price was: $ 899.00.USD$ 649.00Current price is: $ 649.00.eTM-L3010SPD+, High Precision 0-30V 0-10A Linear Variable DC Power Supply with 6-Digits Digital Tube Display, 4 Optional Interface RS232/485/USB/Ethernet
USD$ 1,099.00Original price was: $ 1,099.00.USD$ 699.00Current price is: $ 699.00.eTM-40010C, 2-Kob High Power 400V 10A DC Bench Power Supply Adjustable with Cooling Fan, OVP/OVP Protection, Encoder Adjustment Knob
USD$ 2,049.00Original price was: $ 2,049.00.USD$ 1,589.00Current price is: $ 1,589.00.DC Power Supply Variable New Arrivals
eTM-DM-EEE, Triple Output Bench DC Power Supply 0-60V 0-5A with 4-Digits Display, CV/CC Mode Automatic Conversion, RS232/485/USB (Optional) Port
USD$ 1,149.00Original price was: $ 1,149.00.USD$ 599.00Current price is: $ 599.00.eTM-DM-HHH, Triple Output Bench DC Power Supply 0-150V 0-2A with 4-Digits Display, CV/CC Mode Automatic Conversion, RS232/485/USB (Optional) Port
USD$ 1,149.00Original price was: $ 1,149.00.USD$ 649.00Current price is: $ 649.00.eTM-DM-FKF, Triple Output Bench DC Power Supply 100V/3A, 160V/5A, 100V/3A with 4-Digits Display, CV/CC Mode Automatic Conversion, RS232/485/USB (Optional) Port
USD$ 1,149.00Original price was: $ 1,149.00.USD$ 699.00Current price is: $ 699.00.eTM-DM-KKK, Triple Output Bench DC Power Supply 0-160V 0-5A with 4-Digits Display, CV/CC Mode Automatic Conversion, RS232/485/USB (Optional) Port
USD$ 1,599.00Original price was: $ 1,599.00.USD$ 949.00Current price is: $ 949.00.Shop Variable DC Power Supplies
eTM-K6015SP, High Precision Programmable DC Switching Power Supply 0-60V 0-15A with 5-Digits Blue Screen, Remote Control, OVP/OCP Protection
USD$ 1,599.00Original price was: $ 1,599.00.USD$ 1,049.00Current price is: $ 1,049.00.eTM-40010, 4-Kob High Power Variable Bench DC Power Supply 0-400V 0-10A with Encoder Adjustment Knob, Output Enable/Disable Button, Low Noise
USD$ 1,899.00Original price was: $ 1,899.00.USD$ 1,459.00Current price is: $ 1,459.00.eTM-12020, 4-Kob High Power 0-120V 0-20A Adjustable DC Bench Power Supply with 4-Digits LED Display, Coarse and Fine Adjustments, Low Noise Cooling Fan
USD$ 1,099.00Original price was: $ 1,099.00.USD$ 799.00Current price is: $ 799.00.eTM-L305SP, High Precision Programmable DC Power Supply Linear 0-30V 0-5A with 5-Digits Blue Screen, 10 Sets Shortcut Parameter Storage, OVP/OCP Settings
USD$ 698.00Original price was: $ 698.00.USD$ 449.00Current price is: $ 449.00.