SunFounder BreadVolt Breadboard Power Supply
4.5Editor score
Broad Compatibility With Devices
High Stability And Reliability
Easy To Use Interface
In this guide
Finding the right power source for your electronics projects is crucial for stability and safety. A quality 12V Breadboard Power Supply ensures your microcontrollers and sensors receive clean, regulated voltage without risking damage during experimentation.
We analyzed ten highly rated modules based on input flexibility, output current capacity, safety features, and user feedback. Each product offers unique advantages for hobbyists, students, and professionals building circuits on solderless breadboards.
Every pick below highlights specific strengths like dual channel control or USB compatibility. Please note that availability and pricing change frequently, so verify details before purchasing to ensure you get the best value for your setup.
Top 3 Picks for Best 12V Breadboard Power Supply
2-Pack Breadboard Power Supply Module
4.5Editor score
Dual Power Input Versatility
Independent Right Left Channel Control
Reliable Circuit Protection Included
LM2596 Multi Channel Switching Power Supply
4.8Editor score
Multi Channel Switching Technology
Adjustable Voltage Output Options
Wide Input Voltage Range
Top 10 Best 12V Breadboard Power Supply in 2026 Compared
The following table provides a side-by-side comparison of all ten selected power supply modules. Review the key specifications to determine which model best fits your specific prototyping needs and budget constraints.
ProductsSpecificationsEditor scorePrice
Editor's Choice
2-Pack Breadboard Power Supply Module
Input Type-C USB DC Jack
Output 5V 2A / 3.3V 1A
Independent Switches For Each Channel
Includes Two Modules In Package
4.5Editor score
Editor's Choice
WWZMDiB 5 Pcs Power Supply Module
Input 6.5 12V DC Or USB
Output 3.3V To 5V DC
Max Output Current Less Than 700mA
Includes Five 9V Connectors
4.2Editor score
Best Premium
HJ Garden Electronic Component Power Supply Kit
Includes 830 Point Breadboard
Power Adaptor 12V 1A Included
Power Module Compatible 5V 3.3V
Jumper Wires And Module Included
4.0Editor score
HiLetgo 5pcs 3.3V 5V Power Supply Module
Input Voltage 6.5 to 9V DC
Output Voltage 3.3V And 5V
Max Output Current Less Than 700mA
Onboard DC Output Pins Included
4.3Editor score
SHILLEHTEK Universal Power Supply Module
Input 6.5 to 12V DC Or USB
Selectable 3.3V And 5V Outputs
Compatible With MB102 Breadboards
Plug And Play Solderless Design
5 Pack Breadboard Power Supply Module
Input 6.5 to 12V DC Or USB
Output 3.3V And 5V DC
Max Output Current Less Than 700mA
Includes Five 9V Battery Cables
4.5Editor score
DIY Breadboard Power Supply Soldering Kit
LM2596 Multi Output Power Module
Output 3.3V 5V 12V Adjustable
Built In Digital Voltage Display
Includes Switch And Adjustable Options
4.1Editor score
SunFounder BreadVolt Breadboard Power Supply
Output 5V 1.5A And 3.3V 1A
USB Output Port Available
Compact Size 52mm by 32mm
Compatible With Arduino Raspberry Pi
4.5Editor score
LM2596 Multi Channel Switching Power Supply
Input Voltage 5V to 40V
Output 3.3V 5V 12V ADJ
Multi Channel Switching Technology
Adjustable Voltage Output Options
4.8Editor score
Wefomey Universal Power Supply Variable
Output DC 3 to 24V Adjustable
Max Current 3A 72W
LCD Display Shows Real Time Voltage
Multiple DC Tips Included
4.5Editor score
1. 2-Pack Breadboard Power Supply Module – Best Overall Breadboard Power Supply
2-Pack Breadboard Power Supply Module
Dual Type-C And DC Input
Independent Channel Power Switches
Onboard Short Circuit Protection
Supports 5V At 2A Current
This 2-Pack Breadboard Power Supply Module stands out as the top choice for its versatility and value. Rated at 4.5 stars, it delivers dual channel control with modern Type-C USB input options alongside classic DC jack support.
Pros
- Includes two modules for value
- Modern USB-C input support
- Independent switches for each channel
- Concave design saves tie-points
- Onboard LED status indicators
Cons
- Higher price than single units
- Limited to 700mA on 3.3V
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The independent control for left and right rails allows you to power different components at 3.3V and 5V simultaneously. Onboard protection features safeguard your microcontrollers from shorts while LED indicators confirm active power status easily.
While the price is slightly higher than basic modules, you receive two units in the package. The 3.3V channel maxes at 1A which limits high current usage but suits most standard IoT sensors and microcontrollers well.
Buyers needing reliable power distribution for multiple workstations will appreciate this kit. It is ideal for educators or teams requiring backup units. The design ensures stable prototyping without cluttering your workspace with extra adapters.
Dual Input Flexibility
Supports both modern Type-C USB and classic DC 6-12V jack inputs to fit any workspace setup.
Independent Channel Control
Features independent power switches for left and right rails to manage voltage independently per side.
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2. WWZMDiB 5 Pcs Power Supply Module – Excellent Value Kit
WWZMDiB 5 Pcs Power Supply Module
Input 6.5 to 12V DC
Output 3.3V To 5V
Max Output Current Under 700mA
Five 9V Connectors Included
The WWZMDiB 5 Pcs Power Supply Module offers great bulk value for schools or large labs. With a 4.2 rating, it provides basic regulated outputs compatible with common solderless breadboards for general testing purposes.
Pros
- Five modules in one package
- Includes 9V connectors for batteries
- Compatible with standard breadboards
- Simple plug and play setup
- Affordable bulk pricing
Cons
- Lower current capacity limits usage
- Basic features without advanced protection
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Each module supports input from DC or USB sources and delivers stable 3.3V or 5V outputs. The inclusion of five 9V connectors adds convenience for portable prototyping sessions where wall power is unavailable nearby.
Users should note the maximum output current remains below 700mA which restricts high power applications. The lack of independent channel controls limits flexibility compared to premium models but serves entry needs effectively.
This kit suits educational settings needing multiple units for students. It is practical for quick builds where cost efficiency outweighs advanced features. Verify current requirements match before purchasing for demanding circuits.
Bulk Package Value
Five modules included in one package provide cost effective solutions for classrooms or shared workspaces.
Battery Connection Options
Includes five 9V connectors to enable portable power usage with standard battery packs easily.
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3. HJ Garden Electronic Component Power Supply Kit – Complete Starter Bundle
HJ Garden Electronic Component Power Supply Kit
Includes 830 Point Breadboard
12V 1A Adaptor Included
Output 700mA Max Current
Two Way Independent Control
The HJ Garden Electronic Component Power Supply Kit delivers everything a beginner needs to start prototyping. Rated at 4.0 stars, this bundle includes a breadboard power module plus necessary jumper wires and adaptors.
Pros
- Complete kit with breadboard included
- Power adaptor provided in box
- Jumper wires included for setup
- Stable power supply output
- Good for beginners learning basics
Cons
- Limited current capacity per module
- No USB input option available
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The 12V 1A adaptor ensures stable power delivery for your projects without needing separate purchases. The breadboard module supports switching between 3.3V and 5V outputs with independent control for both sides.
Current limits restrict usage to smaller electronics like sensors and microcontrollers. Users needing higher power will require additional regulators but this kit covers essential needs for learning and simple builds.
Ideal for students entering electronics for the first time. The all-in-one nature removes setup hurdles and lets you focus on building circuits. Verify component compatibility before starting complex designs.
All-In-One Kit
Package includes breadboard module power adaptor and jumper wires for immediate project setup without extras.
Stable Power Supply
Adaptor provides stable power ensuring reliable operation for projects based on breadboard components.
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4. HiLetgo 5pcs 3.3V 5V Power Supply Module – Reliable Bulk Option
HiLetgo 5pcs 3.3V 5V Power Supply Module
Input Voltage 6.5 to 9V
Output Voltage 3.3V And 5V
Max Output Current Under 700mA
Onboard DC Output Pins
The HiLetgo 5pcs 3.3V 5V Power Supply Module offers a practical solution for standard prototyping setups. With a 4.3 rating, it provides stable regulated outputs suitable for low voltage electronics on breadboards.
Pros
- Five pieces in a single pack
- Simple plug and play interface
- Compatible with MB102 breadboards
- Affordable price point
- Reliable voltage regulation
Cons
- No USB-C input support
- Limited current capacity
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Each module plugs directly into power rails and supports input from DC or USB sources. The onboard pins allow easy wiring without soldering which speeds up circuit testing significantly.
Current limits stay under 700mA which suits most microcontrollers but may struggle with high power loads. Users needing higher current should consider external regulators or alternative power modules for robust applications.
Buyers seeking affordable bulk options will find this useful for classrooms or hobby groups. Its simple design ensures ease of use for beginners. Always check input requirements before connecting power sources.
Simple Interface
Plugs directly into breadboard power rails for immediate connection without extra wiring steps.
Stable Voltage Output
Provides stable output ensuring reliable operation for low voltage electronics on breadboards.
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5. SunFounder BreadVolt Breadboard Power Supply – Best Budget Choice
SunFounder BreadVolt Breadboard Power Supply
Output 5V 1.5A And 3.3V 1A
USB Output Port Included
Compact 52mm by 32mm Size
Supports Arduino Raspberry Pi
The SunFounder BreadVolt Breadboard Power Supply offers robust power delivery for a variety of modern boards. Rated at 4.5 stars, it delivers 5V at 1.5A which exceeds many standard module capacities significantly.
Pros
- Strong current output for 5V
- USB port adds convenience
- Compact design fits easily
- Compatible with modern boards
- Affordable pricing for features
Cons
- Breadboard not included in box
- Slightly larger than basic modules
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The inclusion of a USB output adds versatility for powering peripherals directly. Its compact size ensures it fits in tight spaces while still providing sufficient current for sensors and controllers.
While it lacks independent channel switches, the single rail design simplifies wiring for many use cases. Users needing dual voltages will appreciate the jumper caps that allow quick switching between options.
This module suits builders looking for high current at a budget price. It is ideal for projects involving ESP32 or Pi Pico that demand stable power. Check dimensions before installing in confined areas.
Strong Current Output
Delivers 5V at 1.5A which exceeds standard module capacities for demanding devices.
USB Port Convenience
Includes USB output port for versatile powering of peripherals directly from the module.
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6. 5 Pack Breadboard Power Supply Module – Solid Bulk Kit
5 Pack Breadboard Power Supply Module
Input 6.5 to 12V DC
Output 3.3V And 5V DC
Max Output Current Under 700mA
Five 9V Battery Cables
This 5 Pack Breadboard Power Supply Module provides a reliable bulk solution for groups needing multiple units. Rated at 4.5 stars, it offers regulated outputs that work with common solderless breadboards effectively.
Pros
- Five units included in package
- Includes 9V battery cables
- Compatible with standard boards
- Plug and play setup
- Clear LED power status
Cons
- Current limited to under 700mA
- Basic feature set
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The kit includes five 9V connector cables which simplifies battery-powered experiments. Each module features a simple toggle switch and LED indicator to show power status at a glance.
Current capacity remains limited which restricts high power applications. Users should plan accordingly for current heavy loads. However for small circuits this remains a dependable choice for prototyping.
Educators or teams benefit from having backups ready in a single box. It is a practical option for labs where multiple students work simultaneously. Verify current requirements before connecting demanding devices.
Battery Power Options
Includes five 9V battery cables enabling portable prototyping sessions without wall outlets.
Clear Power Status
Features clear LED power status indicators to show active rails at a glance.
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7. DIY Breadboard Power Supply Soldering Kit – Advanced Adjustable Module
DIY Breadboard Power Supply Soldering Kit
LM2596 Multi Output Module
Output 3.3V 5V 12V
Built In Digital Voltage Display
Adjustable Voltage Option Available
The DIY Breadboard Power Supply Soldering Kit offers adjustable voltage capabilities for advanced electronics projects. Rated at 4.1 stars, it integrates multiple outputs and a digital display for precise voltage confirmation.
Pros
- Adjustable voltage with display
- Multiple preset output levels
- Soldering kit for learning
- Supports 12V output
- Good for advanced experiments
Cons
- Requires soldering skills
- Higher price point
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Users can select between 3.3V 5V and 12V or adjust voltage levels to suit specific components. The built-in display helps avoid trial and error during setup of complex circuits.
This module targets makers who enjoy hands-on assembly and customization. The soldering requirement adds complexity but ensures better understanding of power circuits. It is not ideal for those seeking plug and play simplicity.
Perfect for labs needing variable power sources for testing. The 12V support extends utility beyond standard 5V rails. Check compatibility before integrating with sensitive microcontrollers.
Adjustable Voltage Display
Adjustable output features a built-in digital display for fine-tuning voltage levels accurately.
Advanced Project Suitability
Well-suited for powering sensors and small circuits in labs or makerspaces.
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8. SunFounder BreadVolt Breadboard Power Supply – High Capacity Option
SunFounder BreadVolt Breadboard Power Supply
Output 5V 1.5A And 3.3V 1A
USB Output Port Available
Compact Size For Portability
Independent Channels Included
This SunFounder BreadVolt module delivers high current capacity for demanding components. Rated at 4.5 stars, it provides 5V at 1.5A and includes a USB output for connecting peripheral devices directly.
Pros
- High current output for 5V
- Includes USB output port
- Portable for on the go
- Stable regulated power output
- Fits educational needs well
Cons
- Breadboard sold separately
- Single channel design
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The portable design allows continued experimentation anywhere without wall outlets. Independent channels enable distinct voltage control for different sections of a breadboard setup.
While the single channel limits dual rail usage it offers strong output for most needs. Users requiring independent voltage rails should look to dual channel alternatives but this works well for unified setups.
Ideal for students needing robust power for Pi or ESP32 projects. It offers reliable regulation in a compact form. Verify port requirements before connecting multiple USB devices.
Portable Power Design
Compact size enabling continued experimentation and showcasing projects anywhere without outlets.
Precisely Stable Output
Provides precisely stable power output ensuring stable operation of your electronic projects.
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9. LM2596 Multi Channel Switching Power Supply – Premium Flexible Power
LM2596 Multi Channel Switching Power Supply
Input Voltage 5V to 40V
Output 3.3V 5V 12V ADJ
Multi Channel Switching Module
Wide Input Voltage Range
The LM2596 Multi Channel Switching Power Supply stands as the premium choice for advanced electronics work. With a 4.8 rating, it offers a wide input range from 5V to 40V for flexible power sourcing.
Pros
- Highest user rating overall
- Supports wide input voltage range
- Adjustable output capability
- 12V output available directly
- Premium build quality
Cons
- Requires external enclosure for breadboards
- Higher price than basic modules
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Users benefit from adjustable voltage options allowing fine-tuning for specific needs. It supports multiple outputs including 3.3V 5V and 12V which eliminates the need for separate regulators.
This module targets users needing high flexibility and robust regulation. While it requires additional mounting to fit on a breadboard, its capabilities suit complex projects requiring varied voltages.
Investors in quality prototyping tools will find this valuable. It supports high current and stable regulation efficiently. Verify input requirements before connecting to power sources.
Wide Input Range
Input voltage range of 5V to 40V offers flexible power sourcing options.
Adjustable Outputs
Adjustable voltage output allows fine-tuning for specific component needs precisely.
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10. Wefomey Universal Power Supply Variable – Versatile Adapter
Wefomey Universal Power Supply Variable
Output DC 3 to 24V
Max Current 3A 72W
LCD Voltage Display Included
Multiple DC Tips
The Wefomey Universal Power Supply Variable offers high capacity for diverse electronics needs. Rated at 4.5 stars, it delivers up to 3A at voltages from 3V to 24V with real-time LCD monitoring.
Pros
- High current capacity up to 3A
- LCD display for real-time voltage
- Wide voltage range 3 to 24V
- Includes multiple DC tips
- Safety protections included
Cons
- Not a breadboard module directly
- Requires external wiring
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Safety features protect against overloads and short circuits ensuring device safety. The included DC tips fit many devices and the alligator clips allow direct wiring to breadboards or bare wires.
While not a dedicated breadboard module it serves as a versatile power source. Users can connect via clips or cables to power setups directly. It supports complex projects needing high power.
Buyers needing a universal adapter for workshops will appreciate this. It simplifies power needs for multiple devices. Check connector sizes before purchasing to ensure compatibility with your devices.
LCD Voltage Display
The LCD shows output voltage in real time for precise monitoring and adjustments.
Safety Protections
Built-in safety protections prevent over-current over-voltage and short circuit risks.
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Buying Guide – How to Choose the Best 12V Breadboard Power Supply
Selecting the right power supply requires understanding your project needs. Review these factors to make an informed decision.
Voltage Output Range
Ensure the module supports the voltages required by your components. Most microcontrollers use 3.3V or 5V. Check if adjustable options are available for custom needs.
Prioritize units offering both standard outputs for flexibility.
Current Capacity
Calculate total current draw of your devices. Standard modules provide up to 700mA. High current setups may need units with 1A or more.
Choose a supply exceeding your maximum load to prevent voltage drops.
Input Options
Look for USB or Type-C inputs for convenience. DC jack compatibility allows using existing power adapters. Flexibility reduces cable clutter.
Modules with dual inputs adapt better to different power sources.
Safety Features
Over-current and short-circuit protection safeguards expensive components. Select supplies with built-in protection mechanisms. Avoid units lacking these safeguards.
Safety features prevent accidental damage during prototyping mistakes.
Independent Control
Dual channels allow different voltages on each side. This reduces complexity in mixed-voltage circuits. Check for switches on individual rails.
Independent switches enable fine-grained power management.
Physical Fit
Ensure the module fits your breadboard without blocking holes. Compact designs save tie-points. Consider dimensions relative to your workspace.
Proper fit maintains a clean and efficient work area.
Brand Reputation
Select established brands known for quality components. Reliable units provide stable output without noise. Read user feedback for long-term performance.
Trusted brands ensure durability and consistent regulation.
Packaging Value
Bulk kits offer savings for multiple units. Check if adapters or accessories are included. This reduces total costs for larger setups.
Value packs suit teams or classrooms needing multiple supplies.
How to Use and Care for Your 12V Breadboard Power Supply
Insert the module into the power rails of your breadboard ensuring alignment with voltage markings. Double check the polarity before connecting any components to avoid shorts.
Set the voltage using the provided switches or jumper caps. Verify output with a multimeter if uncertain. Always connect ground before powering up your circuit.
Store modules in dry places and avoid excessive bending of the pins. Regularly inspect connectors for wear. Keep spare units for backup when needed.
Frequently Asked Questions
What is a breadboard power supply module?
A breadboard power supply module is a device that plugs directly into solderless breadboards to provide regulated voltages. It converts external power into stable outputs like 3.3V or 5V for electronics projects.
Do I need a separate adapter with these?
Some modules include adapters while others do not. Check the product description to see what is included. If not included, you will need to source a compatible DC or USB power source.
Can I power high current devices with these?
Most modules provide up to 700mA or 1A. High power devices like motors may exceed this. For high current, use a dedicated power supply or parallel multiple modules.
Are these compatible with Arduino boards?
Yes, most are designed to work with Arduino and similar microcontrollers. Ensure voltage requirements match your board. Many kits list Arduino compatibility in descriptions.
How do I switch between 3.3V and 5V?
Use the jumper caps or switches provided on the module. Select the desired voltage before connecting your circuit. Refer to the module guide for specific steps.
What happens if I short circuit the output?
Modules with protection will cut power or limit current to prevent damage. Always use safe wiring practices. Short circuits without protection may damage components or the module.
Final Thoughts on Choosing the Best 12V Breadboard Power Supply
The top picks include versatile dual channel modules and bulk kits for various needs. The Editor's Choice offers balanced features while the Budget option ensures affordability for beginners.
Prioritize current capacity and safety features when selecting a unit. Ensure compatibility with your specific components and workspace layout for smooth operation.
Always check current availability and pricing before purchasing. Prices change frequently so verify details on the product page to get the best deal.