10 Best Benchtop Power Supplies Under $100 for Reliable Lab Work in 2026

Finding benchtop power supplies under 100 that are accurate, stable, and easy to use can be harder than it looks. The best budget models balance clean output, sensible controls, and enough current for common electronics projects.

This roundup focuses on practical options for makers, hobbyists, repair benches, and small lab setups, with attention to display quality, adjustment precision, protection features, and overall value.

Best 10 Benchtop Power Supplies Under 100 Picks for 2026

Upgraded Precision Pick – WANPTEK DPS3010U Bench Supply

If you’re comparing benchtop power supplies under 100 for repair or lab work, this 0-30V, 0-10A unit stands out for its coarse-and-fine encoder knobs and built-in safety features. It’s aimed at users who want quick, accurate adjustments without giving up useful extras like USB and Type-C charging.

Best For: Electronics repair, DIY testing, and teaching labs that need fast, precise voltage and current control.

Pros:

• Coarse and fine coding knobs make voltage and current changes more efficient.
• Type-C quick-charge output and USB charging add convenience at the bench.
• OCP, short-circuit alarm, overheating, leakage, and overload protections improve safety.
• Automatic 110V/220V input detection removes the need for manual switching.

Cons:

• At 300W output, it’s still a bench supply rather than a heavy-duty industrial unit.
• The fan-cooled design may be more noticeable during extended use.

Overall, this model is a practical choice if you want a feature-rich adjustable supply with tighter control than basic knobs and some helpful charging extras for everyday bench use.

Portable Display Pick – FNIRSI DPS-150 Adjustable Supply

For shoppers looking at benchtop power supplies under 100, this compact FNIRSI model focuses on low-ripple output, flexible input options, and a readable color display. It’s a strong fit when you want a small adjustable supply for electronics testing and DIY tasks.

Best For: Small bench setups, electronics testing, and DIY users who value a compact, feature-packed supply.

Pros:

• 30V, 5A output with low ripple helps protect sensitive electronics.
• Supports PC, QC, and DC input modes for flexible powering options.
• 2.8-inch IPS color screen flips 90° for easier viewing.
• Eight safety protections add extra peace of mind.

Cons:

• Maximum output is 150W, so it’s best for lighter bench tasks.
• Battery charging use calls for an added reverse-current protection module.

In short, this is a versatile compact supply for users who want modern display features and multiple input modes without moving up to a larger benchtop unit.

Linear Budget Pick – Pyramid PS9KX Bench Supply

If you want one of the simpler benchtop power supplies under 100, this Pyramid unit keeps the focus on straightforward AC-to-DC conversion and dependable 13.8V output. It’s built for users who need a compact linear regulated supply with screw terminals and basic protection.

Best For: Radio gear, tabletop testing, and users who want a simple fixed-voltage bench supply.

Pros:

• Linear regulated design provides a constant 13.8V DC output.
• Screw-type terminals work well for a range of devices and test setups.
• Built-in short-circuit and overload protection improves everyday safety.
• Cooling fan and heatsink help manage heat during use.

Cons:

• Not adjustable like variable bench supplies in this roundup.
• Lower 69W output limits it to lighter-duty applications.

Bottom line: this is the most straightforward option here, best if you prefer a fixed 13.8V bench supply over variable controls and extra digital features.

Value Control Pick – NANKADF 30V 10A Bench Supply

Among benchtop power supplies under 100, this NANKADF model is aimed at buyers who want fine control, quick output switching, and built-in USB charging. Its encoder knob and clear 4-digit display make it a practical fit for repair benches and general testing.

Best For: Hobbyists and repair users who want precise control and a simple output on/off button.

Pros:

• Encoder knob lets you adjust each digit for more precise settings.
• Output enable/disable button helps prevent accidental power delivery.
• OCP with buzzer alarm adds short-circuit protection.
• USB fast-charging port is handy for phones and repaired devices.

Cons:

• Requires 115V input according to the supplied details.
• Air cooling means fan noise is part of normal operation.

Overall, this is a well-rounded bench supply for users who want accuracy and convenience features without stepping away from an affordable, compact setup.

Budget High-Power Pick – NICE-POWER 150W 0-30V/0-10A Bench PSU

If you want benchtop power supplies under 100 that still offer serious output, this NICE-POWER unit is built for compact workspaces and general DC testing. It can be switched between 15V/10A and 30V/5A modes, with a 150W limit that keeps the output within its rated range. The encoder-based adjustment system is aimed at more precise setup than traditional knobs, while the small footprint makes it easy to place on a crowded bench.

Best For: Makers, DIY users, and small bench setups that need a compact adjustable PSU with a 150W ceiling.

Pros:

• Switchable output modes: 15V/10A or 30V/5A within the 150W limit
• Encoder adjustment with 0.1V voltage and 0.01A current accuracy
• Very compact and lightweight for tight workspaces
• Automatic cooling fan and wide 100V-240V AC input range

Cons:

• Output is capped at 150W, so it is not meant for higher-power loads
• Requires cooling breaks if the unit gets too hot

Overall, this is a practical compact bench supply for buyers who value precision adjustment and portability over maximum wattage. It fits well as an affordable everyday bench PSU for electronics, DIY, and similar low-to-mid power tasks.

Feature-Packed Compact Pick – Jesverty 0-32V 0-10A Bench Supply with USB-C

Among benchtop power supplies under 100, this Jesverty model stands out for packing in useful extras alongside its adjustable DC output. It offers 0-32V and 0-10A output, encoder coarse and fine adjustment, and a 4-digit LED display for easier setup. The built-in USB-A and USB-C 20W fast-charging ports add convenience if you also want to power small devices from the same unit.

Best For: Hobbyists and bench users who want a compact adjustable supply with USB charging ports and output control.

Pros:

• Encoder coarse and fine knobs with 0.01V/0.001A resolution
• USB-A and USB-C ports with 20W fast charging
• Dedicated output ON/OFF button for easier adjustments
• Compact, lightweight chassis suited to limited bench space

Cons:

• Test leads are included as a giveaway and may not suit heavy-duty use
• Some settings and power cord details vary by destination

For buyers who want more convenience features in a small bench supply, this Jesverty unit is a strong all-around option. It balances adjustable DC output, fast-charging ports, and practical protections in a space-saving design.

Safety-Focused Charging Pick – Kungber 30V 10A Bench Power Supply

If your search for benchtop power supplies under 100 includes battery charging and protection features, this Kungber unit is worth a look. It provides up to 30V and 10A, includes an intelligent charging mode, and displays charging power in real time. The unit also adds overcurrent detection, thermal protection, leakage protection, and other safeguards that make it appealing for general bench and repair work.

Best For: Users who want a compact bench supply with battery charging support and strong protection features.

Pros:

• Intelligent charging mode with real-time Ah display and automatic stop when full
• Overcurrent detection and alarm with short-circuit protection
• Multiple safety measures including grounding, leakage, thermal, voltage, and power protection
• Built-in 18W USB port for quick device charging

Cons:

• Uses a plastic enclosure rather than metal
• Output is limited to 30V and 10A for bench applications

This Kungber model is a sensible pick if protection and charging behavior matter as much as adjustable output. It keeps the footprint small while adding helpful safety and battery-management features for everyday lab and DIY use.

Lab-Ready Presets – WANPTEK 30V 10A Bench Supply

If you’re comparing benchtop power supplies under 100 for repair or test-bench use, this WANPTEK unit stands out for its 0–30V, 0–10A regulated output, encoder-based fine adjustment, and three memory presets. It’s built for practical workflow speed, with an output switch, OCP protection, and a key lock that help reduce mistakes during repetitive bench work.

Best For: Electronics repair, circuit diagnostics, and lab users who want preset-driven control.

Pros:

• 0–30V / 0–10A regulated output for common bench and repair tasks
• Encoder knob supports precise digit-by-digit adjustment
• Three memory presets make repeat testing faster
• Output switch, OCP protection, and key lock add day-to-day safety

Cons:

• Included test leads are described as light-duty
• U.S. users need to set the rear 115V/230V switch correctly before use

Overall, this is a strong pick if you want a compact bench supply with fast recall features and straightforward protection tools. The built-in USB port and clear 4-digit LED display add convenience for a repair bench or small lab.

Fine-Tune Control – HANGELL 30V 10A Variable Supply

For shoppers looking at benchtop power supplies under 100, this HANGELL model focuses on precise control and safety features. It uses an encoder knob with coarse and fine adjustment, a 4-digit LED display with 0.01V and 0.001A resolution, and an output switch so you can set values before energizing the load.

Best For: Users who want precise adjustment and clear readouts for electronics work.

Pros:

• Encoder knob offers coarse and fine adjustment for easier tuning
• 4-digit display shows voltage and current with high resolution
• Output switch helps prevent accidental load damage
• OCP plus overvoltage, overcurrent, overtemperature, and overload protection

Cons:

• No USB charging port is listed in the supplied notes
• Higher input support is limited to the product’s stated AC range, so check compatibility first

This is a good fit if you prioritize exact voltage/current setting and want a bench supply that is designed around control and visibility. The added short-circuit alarm and lifelong technical support round out the package for routine lab use.

Portable USB Pick – NICE-POWER 30V 10A Bench Supply

If you want one of the more practical benchtop power supplies under 100 for a mixed-use work area, this NICE-POWER model brings a bright 4-digit display, output switching, and a built-in 5V/2A USB port. It’s aimed at users who want a compact regulated supply with clear readouts, multiple protections, and easy day-to-day handling.

Best For: Compact workspaces, portable use, and users who want USB charging on the bench.

Pros:

• 4-digit LED display shows voltage, current, and power in real time
• Output switch makes it easier to set values before applying power
• Built-in 5V/2A USB port adds extra convenience
• Multiple protections and intelligent fan cooling support safer operation

Cons:

• The supplied notes state that 220V input is not available
• Some competing models offer encoder-based adjustment or presets, which this one does not emphasize

For buyers who value portability and an integrated USB charge port, this is a very balanced bench supply option. Its vertical design and lightweight build make it easier to move between stations while still covering standard bench power tasks.

How We Picked These Benchtop Power Supplies Under 100

We focused on the features that matter most on a real workbench: adjustable voltage and current ranges, output stability, readable displays, fine control for low-voltage work, and basic protection features such as overcurrent limiting and output on/off switches. We also favored units that offer useful extras without making the controls confusing.

Quick Comparison

Most Benchtop Power Supplies Under 100 in this roundup fall into two main groups: higher-current switching supplies for general electronics testing, and lower-current compact models that suit lighter bench tasks. If you need maximum output headroom, look for 30V/10A class units. If your work is mostly small circuits, a simpler 30V/5A or compact linear unit may be the better fit.

Key Buying Factors for Benchtop Power Supplies Under 100

Voltage and Current Range

Choose a supply that comfortably exceeds your usual needs. Extra headroom helps when powering devices with startup surges or when you want to avoid running the unit near its limits.

Display and Adjustment Controls

Encoder knobs, coarse/fine adjustment, and multi-digit displays make it easier to dial in exact values. That matters for sensitive testing where small changes can affect results.

Protection and Output Control

Look for current limiting, overcurrent protection, and an output enable switch. These features reduce the risk of accidental damage when connecting new circuits or troubleshooting faults.

USB Extras and Convenience Features

USB or Type-C charging ports can be useful, but they should not replace core bench performance. Treat them as a bonus, not the main reason to buy.

Who Should Buy Which Benchtop Power Supplies Under 100?

Choose a higher-current switching model if you need one supply for a wide mix of jobs, from Arduino projects to motors, modules, and repair work. Pick a compact linear or lower-power model if you value simplicity, lower noise, and mostly work with small electronics. For users who frequently swap between projects, memory presets and output switches can save time. If you are building a first bench setup, prioritize stable output, clear controls, and protection before optional features.