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LONELY BINARY

3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable | 3.3V/5V slide switch, 500mA PPTC protection; USB-C 5V input; dual LED indicators; plugs into breadboard power rails

Name: Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable | 3.3V/5V slide switch, 500mA PPTC protection; USB-C 5V input; dual LED
Brand: LONELY BINARY
SKU: B0FXL6DLB9
Price: 12.99 USD
Availability: InStock

By SpecPicks Editorial · Verified 2026-07-22

$12.99

Buy on Amazon — $12.99 Compare to similar games & cartridges

*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.

Bottom line: The 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable | 3.3V/5V slide switch, 500mA PPTC protection; USB-C 5V input; dual LED indicators; plugs into breadboard power rails is a niche pick — read recent reviews before buying in the games & cartridges category, priced around $12.99. Read recent reviews carefully before committing.

Lonely Binary 3-Pack Breadboard Power Supply ModulesThe Lonely Binary Breadboard Power Supply Module is a compact power adapter for electronics prototyping on solderless breadboards. This 3-pack plugs directly into the power rails of your breadboard (sold separately) to provide voltage for your circuits, reducing wiring and external adapters. Suitable for hobbyists, students, and makers working on prototypes, testing, or STEM projects with boards like Arduino, Raspberry Pi, Pico W, and ESP32.Key FeaturesSwitchable Voltage Outputs:Select between 3.3V and 5V with a slide switch. Built-in 500mA…

SpecPicks Verdict

SpecPicks classifies Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C… as a niche pick — read recent reviews before buying in the games & cartridges category, based on our editorial and benchmark analysis and our ranking model that weights rating × review-volume × price-fit. LONELY BINARY's positioning sits within the broader category mid-tier. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for games & cartridges of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Backed by LONELY BINARY's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

【3.3V/5V SWITCHABLE OUTPUT】Toggle between 3.3V and 5V with a slide switch, up to 500mA per module (PPTC protected) — for powering Arduino, Raspberry Pi, Pico W, ESP32, and other microcontrollers without extra adapters.
【BUILT-IN SAFETY PROTECTION】PPTC resettable fuses limit current to 500mA per module to help prevent overloads and short circuits — suitable for beginners and experienced makers working on STEM projects.
【USB TYPE-C CONNECTIVITY】USB Type-C input (5V DC) for power from laptops, power banks, or USB hubs — reduces wiring for portable prototyping setups.
【LED POWER INDICATORS】Dual LEDs (red for 5V, blue for 3.3V) show active voltage status for safe operation and quick troubleshooting during DIY builds.
【COMPACT 3-PACK, FOR LOW-POWER LOADS】Plugs directly into standard solderless breadboard power rails. Suitable for logic circuits, sensors, displays, and single dev boards (up to 500mA). For high-current loads like motors or large LED arrays, use a dedicated supply. Pack of 3. Note orientation to avoid reversed polarity.
【RELIABLE VOLTAGE STABILITY】Measured outputs of ~3.27V (3.3V nominal) and ~4.92V (5V nominal) with minimal drop; great for quick prototypes, though note orientation to avoid reversed polarity.

Full Specifications

Brand	LONELY BINARY
Wattage	7 watts
Model Name	3.3V/5V Switchable Breadboard Power Supply
Form Factor	Breadboard
Connectivity	USB-C
Model Number	Switchable Breadboard Power Supply
Compatibility	Switch
Built-In Media	3xBreadboard Power Supply Modules
Connector Type	Type C
Cooling Method	Air
Output Wattage	5 Watts
Item Dimensions	0.65 x 2.09 x 0.79 inches
Compatible Devices	400 Point Solderless Breadboard, 830 Point Solderless Breadboard, Breadboard , full size breadboard, half size breadboard.
Warranty Description	1 YEAR

Ready to buy?

Lonely Binary 3-Pack Breadboard Power Supply 3.3V 5V USB-C Switchable | 3.3V/5V slide switch, 500mA PPTC protection; USB-C 5V input; dual LED indicators; plugs into breadboard power rails is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Last updated 2026-07-22. Price and availability subject to change.