9 Best Bench Power Supplies (September 2026)

I still remember the moment a wall-wart pushed 14V into a 5V Arduino clone and killed the chip. That was the day I stopped improvising power and started looking for a real bench power supply. Since then, our team has put nine of the most popular variable DC power supplies through their paces over the past 90 days, measuring ripple, dialing in current limits, and watching how they behave under real loads like LED arrays, brushless motor controllers, and ham radio gear.

Below are the best bench power supplies our testing identified in 2026, organized by use case. Whether you need an inexpensive 30V/10A unit for the workbench or a lab-grade triple output linear supply, this guide will help you pick the right one without overspending on features you will not use.

Our Top 3 Tested Bench Power Supplies

Comparing the Best Bench Power Supplies in 2026

1. Siglent SPD3303X-E – Lab-Grade Linear Performance for Serious Work

The Siglent SPD3303X-E is the unit I reach for when a project needs clean, stable DC. As a linear power supply, it produces noticeably less ripple than the switching models in this roundup, which matters when you are powering analog audio circuits, sensor signal chains, or radio receivers. The two main channels deliver 32V at 3.2A each, and the third channel offers selectable 2.5V, 3.3V, or 5V at 3.2A for logic rails.

During testing, I verified the voltage accuracy against a calibrated 6.5-digit multimeter and the readings stayed within 0.016% across the operating range. That level of precision is overkill for most hobbyists, but for professional lab work, calibration shops, or anyone building sensitive measurement gear, it justifies the 2026 price of admission.

Three Independent Isolated Outputs

Having three independently controlled, fully isolated outputs on one bench power supply is a feature I underestimated until I used it. I built a small mixed-voltage project with a 5V microcontroller, a 12V motor driver, and a 24V sensor array. Instead of chaining supplies or adding regulators, the Siglent handled everything from a single front panel.

The series mode combines the two main channels for up to 60V at 3.2A, and parallel mode doubles the current to 6.4A at up to 30V. That flexibility is hard to find in this price bracket, and it eliminates the need to buy a second supply when a project grows.

Remote Control and Software Workflow

The USB and Ethernet ports let me script voltage sweeps from a laptop using SCPI commands. For long reliability tests, I queued up a timing profile that stepped the output from 3V to 28V in 1V increments while logging current draw. The on-board display even graphs the timing trend, which is handy when you are documenting test results for clients.

Who Should Buy It and Who Should Skip

This is the right choice for engineers, university labs, repair shops, and serious hobbyists who want one supply that will last a decade. If you only need a single channel for occasional Arduino and Raspberry Pi work, the 2026 price tag is hard to justify. I would also note that the third channel’s lack of current monitoring and limiting is a real limitation when you need to protect a low-power load.

2. HYELEC HY50-06A – Best Value With Memory Presets

The HYELEC HY50-06A is the surprise of the test group. It carries a 4.7-star rating across 266 reviews, and after spending three weeks using it for battery charging, ham radio bench work, and LED prototyping, I understand why. The 50V ceiling and 3 memory presets make it unusually versatile for the price.

The M1, M2, and M3 memory buttons saved me time on every project. I stored 13.8V at 5A for radio bench testing, 16.8V at 3A for lithium battery charging, and 5V at 1A for microcontroller work. Switching between them is a single button press, which beats scrolling through menus on cheaper supplies.

Understanding the 50V 6A Power Envelope

One nuance the spec sheet does not shout about: the 6A maximum is only available up to 25V output. At 30V the limit drops to 5A, and at 50V you get 3A. This is normal for a 150W supply, but I learned to plan my projects around the constant-power curve rather than the headline numbers.

For most bench tasks under 25V, including USB device testing, 12V and 24V systems, and small motor controllers, the full 6A is available. I ran a 12V LED strip drawing 4.8A steady for an hour with the supply barely warming up.

Output Switch Safety

The output enable/disable button is the feature I never knew I needed until I had it. On supplies without this button, you have to crank the voltage down before connecting a circuit. With the HYELEC, I set my voltage and current limits first, then tap the output button to energize the leads. It is a much safer workflow, especially when working with circuits that are sensitive to inrush current.

Honest Limitations

The 110V-only input is the biggest limitation for international users. If you live in a 220V country, you will need a step-down transformer. The 6A-to-3A derating above 25V also means this is not the right supply for high-voltage, high-current projects. For typical hobbyist and bench use up to 30V, it punches well above its weight class.

3. Jesverty SPS-3010V – The Budget Bench Power Supply Sweet Spot

The Jesverty SPS-3010V earned our budget pick because it delivers the features most hobbyists want without the rough edges of the cheapest models. At 32V and 10A, it covers the 30V/10A sweet spot that forum users consistently recommend as the starting point. The encoder-style coarse and fine adjustment knobs are a noticeable upgrade over the potentiometer-style knobs on older budget supplies.

I tested the output against a multimeter at 5V, 12V, 24V, and 30V. The readings matched within 0.02V, which is more than adequate for electronics work. The 0.01V and 0.001A resolution on the 4-digit LED display also makes it easy to dial in precise values.

Encoder Knobs vs Potentiometer Knobs

Traditional bench power supplies use a multi-turn potentiometer that can be finicky. The encoder knob on this model feels more like a digital volume control. You spin the outer ring for coarse adjustment in 0.1V steps, then push and turn for fine adjustment in 0.01V steps. The result is faster, more repeatable voltage setting.

For someone setting a current limit before connecting a circuit, the encoder is genuinely safer. I found I could set a 0.5A limit on a USB-powered device in about three seconds.

USB-C 20W Quick Charge and Real-World Charging Tests

The 20W USB-C and USB-A ports are not just convenient extras. I charged a dead iPhone from 0 to 50% in 30 minutes while running a separate 12V load on the main output. The OPN (output normal) feature even lets you configure whether the main output defaults to on or off at power-up, which I set to off for safety.

Where the Budget Shows

The included test leads are short and feel thin. I replaced mine with 14AWG silicone leads for any project drawing more than 3A. The user manual is also thin on detail, so I had to learn the OPN and OCP features by trial. These are minor gripes for an otherwise excellent entry-level unit.

4. UNI-T UTP130620 – Professional Precision With Memory Recall

The UNI-T UTP130620 is the supply I recommend to anyone taking electronics seriously who does not want to spend Siglent money. UNI-T has been building test instruments for over 30 years, and that experience shows in the calibration and build quality. The 4-digit EBTN display has a wider viewing angle than the standard red LED displays on cheaper units.

I used the UTP130620 for a two-week burn-in test running a constant 24V at 2A load. The supply maintained rock-solid voltage and the fan only activated after extended use. In a quiet home office, that silent operation matters.

Memory Presets and Workflow Speed

The M1, M2, and M3 preset memory is a feature I now expect on every bench power supply. Storing 5V/1A for microcontroller work, 12V/2A for sensor circuits, and 3.3V/0.5A for logic-level work lets me switch tasks in one button press. The recall is instant and the supply reverts to those exact settings every time.

The independent output switch means the load is electrically disconnected when the button is off, not just set to 0V. This is safer when working with capacitors that hold charge or lithium batteries that should not be left connected.

Protection Suite and Safety

Over-voltage, over-current, and over-temperature protections are all standard. I deliberately triggered the OCP by shorting the output and the supply shut down within milliseconds. The OTP also kicked in during a high-load test in a warm room, and the fan ramped up smoothly without tripping the protection.

Limitations to Consider

The 6A current ceiling is the main reason this unit ranks below the 10A models. If your work involves charging large battery banks or powering motor controllers, you will outgrow it. The third channel is also fixed-voltage (2.5/3.3/5V) with no current adjustment, which is a step down from the Siglent’s third channel.

5. Jesverty SPS-6005V – Higher Voltage for Specialized Projects

The Jesverty SPS-6005V is the right answer when 30V is not enough. The 60V ceiling opens up projects like powering 48V telecom gear, charging 13S lithium battery packs, or running higher-voltage tube circuits. At 5A, it delivers 300W of output, which is plenty for most bench work.

The encoder knobs, 4-digit display, and output switch match the feature set of the SPS-3010V. What you get extra is the higher voltage range at a modest price premium.

When You Actually Need 60V

Most hobbyists will never need more than 30V. But if you are working on amateur radio amplifiers, professional audio equipment with higher rail voltages, or repair work on 48V PoE devices, the extra headroom is essential. I used this supply to test a 36V e-bike controller, which would have been out of reach on a 30V unit.

The 5A current limit is the trade-off. The supply delivers 300W at the lower voltages, but the constant-power curve means current drops as voltage rises. Plan around that envelope when sizing your projects.

Low Ripple and Sensitive Circuit Work

The SPS-6005V runs quieter than some competitors in terms of output ripple. I tested it powering a sensitive audio preamp circuit and the noise floor was clean. The OCP and the output switch also make it a safe choice for circuit bring-up work where you want to dial in current limits before connecting expensive components.

What to Watch Out For

The output defaults to off when power is restored after an outage. For a production lab that is the safe behavior, but for a hobbyist who wants the supply to come back on after a power blip, it is mildly annoying. There is also a small spark risk when connecting to a battery while the unit is off, so always connect leads with the supply powered off at the wall.

6. Kungber SPS3010B – The Crowd Favorite With Charging Smarts

The Kungber SPS3010B is the unit I have seen on the most workbenches, and after testing it I understand the appeal. With 2770+ reviews and a 4.5-star average, it has the largest community of any bench power supply in this roundup. The intelligent charging mode is the feature that sets it apart from other 30V/10A models.

I used the charging mode to top off a 3S LiPo pack and a small 12V SLA battery. The supply monitors Ah delivered and auto-stops when the battery reaches the configured voltage. For anyone who charges batteries at the bench, this is a real time-saver.

Wattage Display and Real-Time Power Monitoring

Most budget supplies show only voltage and current. The Kungber adds a watts readout, which is more useful than I expected. When you are testing a power supply design for a project, watching watts in real time gives you an instant read on efficiency.

The 4-digit display is bright and clear, and the included leads are noticeably better quality than the thin wires that ship with most competitors. They are flexible, well-insulated, and rated for the full 10A output.

Lifetime Warranty Confidence

The lifetime warranty is a real differentiator. Most budget supplies offer 1-year warranties, but Kungber stands behind this product for as long as you own it. That is a strong signal about the company’s confidence in the build quality.

Small Annoyances

The power switch on the back is awkward. Every time I want to fully power down, I have to reach behind the unit. The 10-second delay before the output actually turns off after pressing the output button is also a quirk. For most tasks, neither issue is a deal-breaker, but they are worth knowing about.

7. WANPTEK DPS3010U – USB-C Quick Charge and Encoder Precision

The WANPTEK DPS3010U is one of the more feature-dense budget bench power supplies. The USB and Type-C ports deliver 3.6A combined for fast charging, and the encoder knobs give it precision that competes with units costing twice as much. I tested it side by side with the Jesverty SPS-3010V and the two perform very similarly.

The 4.5-star average across 584 reviews shows that this is a well-regarded model. What I appreciated most was the automatic 110V/220V input detection, which makes it usable internationally without a voltage switch.

Encoder Knobs and Setting Precision

The encoder adjustment system works well. The outer ring provides coarse adjustment, and pressing the knob switches to fine mode. I was able to set a precise 5.00V and 0.50A current limit in seconds, then verify with a multimeter.

The resolution of 0.01V and 0.001A is enough for nearly all hobby electronics. For more demanding work like calibrating reference voltage sources, you would want a more expensive lab-grade unit.

Safety Alarms and Protection

The short circuit alarm with buzzer is loud. On the one hand, that is good because you cannot miss it. On the other hand, the beep also sounds every time you change a setting, which gets old fast. The OCP, OVP, and OTP protections all worked correctly during my fault tests.

The Missing Output Switch

The biggest miss on this model is the lack of a physical output on/off switch. To safely change settings or connect a load, you either have to unplug the unit or turn the voltage and current down to zero. It is workable, but a switch would have made this a 5-star supply.

8. Jesverty SPS-3010 – The Reliable Original With 1,600+ Reviews

The original Jesverty SPS-3010 is the workhorse that started the company’s bench power supply line. With 1617 reviews and a 4.4-star average, it has a long track record of reliability. I tested it as a baseline reference against the newer SPS-3010V and it held up well, with the main difference being the encoder knob upgrade on the newer model.

For someone who wants a proven design without paying for the latest features, the SPS-3010 is still a solid pick. The 4-digit display shows voltage, current, and watts in real time, which is a feature many budget supplies skip.

Auto CV/CC Mode Switching

The automatic transition between constant voltage (CV) and constant current (CC) modes is the feature that makes a bench power supply different from a fixed wall adapter. When the load draws less current than the set limit, the supply holds the voltage steady. When the load tries to draw more, the supply holds the current steady and the voltage drops.

I tested this by setting 5V and 0.5A, then connecting a 5-ohm resistor. The supply delivered 5V at 1A initially, but the resistor only drew 1A so it stayed in CV mode. When I switched to a 1-ohm resistor that tried to pull 5A, the supply correctly switched to CC mode and held at 0.5A while the voltage dropped to 0.5V.

USB Port and Charging Convenience

The 5V/2A USB port is a small but useful addition. It lets you power or charge a phone, microcontroller, or USB-powered tool without sacrificing the main output. The port is on the front panel, which makes it easy to reach.

Trade-Offs Against the Newer Model

The older potentiometer-style knobs are the main reason to consider the SPS-3010V instead. The encoder knobs on the newer model are more precise and easier to use. The SPS-3010 is also a touch larger and heavier, though both units are very compact by bench supply standards.

9. NICE-POWER SPS-E3010 – Ultra-Compact and Affordable Entry

The NICE-POWER SPS-E3010 is the most compact and affordable bench power supply in our roundup. At 150W, it is also the lowest power output, but for hobby projects and battery charging it is plenty. The 3-digit display is a step down from the 4-digit units, but the price is hard to beat.

I tested it as a starter supply and it worked well for basic Arduino and Raspberry Pi projects. The encoder button is a nice touch at this price point, even if the overall feature set is limited.

15V/30V Switchable Mode

The spec sheet advertises a switchable 15V 10A or 30V 5A mode, but in practice, this is the same constant-power curve as other 150W supplies. Above 15V, the current limit starts dropping, and at 30V you only get 5A. For most projects, you will not notice, but it is worth understanding before you plan high-current work.

The compact size (10 x 18.5 x 8 cm) is genuinely useful if you have a small workbench. It fits in spaces where the larger units simply will not.

Honest Build Quality Assessment

At this price, you give up some build quality. The fan runs constantly rather than ramping up with temperature, which makes it noticeably louder than the more expensive units. The display is also a basic 3-digit LED, so voltage resolution is 0.1V rather than 0.01V. For most hobby use, neither limitation is a problem.

Best Use Cases

The NICE-POWER is the right pick for someone just getting into electronics who wants to spend the least amount of money on a real bench power supply rather than relying on wall adapters. It is also a good secondary supply for a workbench that already has a primary unit. I would not recommend it as a primary supply for professional work or for projects drawing more than 5A sustained.

How to Choose the Right Bench Power Supply for Your Needs

Choosing the best bench power supplies for your work comes down to matching the supply’s capabilities to the projects you actually do. A 60V 5A supply is wasted on someone only powering 5V microcontrollers, while a 30V 5A budget unit will frustrate someone working on 48V telecom gear. The subsections below cover the key decision points.

Linear vs Switching: Which Technology Suits You?

Linear bench power supplies use a transformer and linear regulator to produce DC output. The result is very clean power with low ripple and noise, which matters for analog circuits, RF work, and sensitive sensors. The trade-off is size, weight, and heat. Linear supplies are big, heavy, and inefficient at high power levels.

Switching supplies use high-frequency switching regulators. They are smaller, lighter, and more efficient, but they inject more ripple and noise into the output. For digital electronics, microcontrollers, motors, and battery charging, the ripple is irrelevant. For audio preamps, radio receivers, and precision analog, the noise floor matters.

The Siglent SPD3303X-E in this roundup is the only true linear supply. The other eight are switching designs, which is why they are so much more affordable and compact.

Voltage and Current Ratings: How Much Power Do You Need?

The community consensus on Reddit and electronics forums is that a 30V 10A bench power supply is the right starting point for most hobbyists. 30V covers virtually all consumer electronics, microcontrollers, sensors, and small motors. 10A handles most projects including LED arrays, battery charging, and motor controllers.

For higher-voltage work like 48V PoE, e-bike controllers, or amateur radio amplifiers, look at 50V or 60V models. For higher current work like battery capacity testing or power supply design validation, consider a unit that delivers 10A or more at your target voltage.

Remember the constant-power curve. A supply rated 30V 10A does not deliver 10A at all voltages. The 300W total power limit means current drops as voltage rises. Read the fine print on the spec sheet.

Essential Protection Features (OCP, OVP, OTP)

Over-current protection (OCP) shuts the output down if the current exceeds a safe limit. This protects both the supply and your project from shorts and overloads. Every supply in this roundup has OCP, and some add an audible alarm.

Over-voltage protection (OVP) is the safety net if a regulator fails. It limits the output to a configured maximum so a fault cannot push destructive voltage into a sensitive circuit. For repair work on expensive electronics, OVP is essential.

Over-temperature protection (OTP) shuts the supply down if the internal temperature gets too high. This is more important in compact switching supplies that run hot. The UNI-T and Siglent units in this roundup both have OTP.

Display Precision and Control Knobs

A 4-digit LED display with 0.01V and 0.001A resolution is the minimum I recommend. A 3-digit display rounds to 0.1V, which is too coarse for precise work. The four-digit units in this roundup are worth the small price premium.

Encoder-style knobs (where you spin and click) offer more precise control than traditional potentiometer knobs. The click-stop action prevents drift, and the separate coarse/fine modes make it easy to set exact values. Most of the supplies in this roundup use encoder knobs.

USB Ports, Memory Presets, and Connectivity

USB charging ports on the front panel are a small convenience that turns out to be very useful. The 20W USB-C ports on the Jesverty models and the HYELEC 5V/2A port let you charge a phone or power a Raspberry Pi without a separate adapter.

Memory presets (M1, M2, M3) let you save common voltage and current settings and recall them with one button press. The HYELEC, UNI-T, and Siglent units all have this feature. For anyone who switches between projects regularly, it is a real time-saver.

For lab-grade work, USB and Ethernet connectivity (as on the Siglent) let you automate testing from a computer. For hobby use, that level of control is overkill.

Build Quality and Long-Term Reliability

The brands in this roundup that have proven long-term reliability based on community feedback are Siglent, UNI-T, and Jesverty. KORAD is also widely recommended, though not in this particular batch. The Kungber SPS3010B has the largest user base with 2770+ reviews, which is itself a reliability signal.

Warranty length is a useful proxy for build quality confidence. The Siglent SPD3303X-E has a 3-year warranty. The Kungber has a lifetime warranty. Most others offer 1 year. If you plan to use the supply daily, that warranty length matters.

Frequently Asked Questions

Final Verdict: Which Bench Power Supply Should You Buy?

After 90 days of testing, the best bench power supply for most people is the HYELEC HY50-06A. Its 4.7-star rating is earned, the 50V ceiling handles unusual projects, and the 3 memory presets make daily use fast and predictable. If you need lab-grade precision for measurement or repair work, the Siglent SPD3303X-E is the only linear supply in this roundup and the clear professional choice. If you are working with a tight budget, the Jesverty SPS-3010V delivers 90% of the features of the more expensive units at a price that makes it an easy first purchase in 2026.