iUniker Raspberry Pi Power Supply with Switch 15W vs Arcity 5V 12V 24V Output Switching Power Supply
Updated August 2026 — Arcity 5V 12V 24V Output Switching Power Supply leads on heat dissipation and output.
The Arcity power supply offers more versatility and safety features, making it a better choice for diverse applications. However, the iUniker model is more affordable for Raspberry Pi users.
Why iUniker Raspberry Pi Power Supply with Switch 15W is better
Price
iUniker is significantly cheaper at $8.99.
Ease of Use
iUniker has an easy ON/OFF switch.
Compatibility
iUniker is specifically designed for Raspberry Pi.
Why Arcity 5V 12V 24V Output Switching Power Supply is better
Versatility
Arcity supports multiple voltage outputs.
Safety Features
Arcity includes multiple protective features.
Power Efficiency
Arcity is designed for low power consumption.
Overall score
Specifications
| Spec | iUniker Raspberry Pi Power Supply with Switch 15W | Arcity 5V 12V 24V Output Switching Power Supply |
|---|---|---|
| Voltage | 5V | 5V/12V/24V |
| Current | 3A | 8A (5V) |
| Protection | None | OVP, OCP, SCP |
| Switch | Yes | No |
| Application | Raspberry Pi | Multiple devices |
Dimension comparison
Overview of Power Supplies
When it comes to power supplies, the iUniker Raspberry Pi Power Supply with Switch is priced at $8.99, while the Arcity 5V 12V 24V Output Switching Power Supply Unit is available for $21.98. This represents a price difference of about 145%. The iUniker model is specifically designed for Raspberry Pi devices, while the Arcity unit offers versatility for a range of applications, making it essential to consider the intended use before making a purchase.
Compatibility with Devices
The iUniker Raspberry Pi Power Supply is compatible exclusively with Raspberry Pi 2, Pi 3, and Pi 3 B+, but it is not suitable for the Raspberry Pi 4. In contrast, the Arcity switching power supply is multifunctional, providing adjustable outputs of 5V, 12V, and 24V, making it suitable for a broader range of devices, including arcade machines, CCTV cameras, and 3D printers. This wide compatibility makes the Arcity unit more versatile for users with diverse power needs.
Design and Usability
The design of the iUniker power supply features an easy ON/OFF switch, adding convenience for users who want to quickly power their Raspberry Pi on and off. On the other hand, the Arcity power supply is compact in size and emphasizes stability with low ripple noise and low power consumption. While both designs have their merits, the added switch in the iUniker model could be a deciding factor for those who prioritize ease of use.
Output Specifications
The iUniker power supply delivers a regulated output of 5V DC at 3.0 A, making it suitable for powering Raspberry Pi devices efficiently. Meanwhile, the Arcity unit offers a range of outputs: 5V at 8A, 12V at 8A, and 24V at 3A, which provides users with more options depending on their requirements. This flexibility in output specifications can be crucial for users looking to power multiple devices with varying voltage needs.
Safety Features
Safety is a critical aspect of power supplies, and here the Arcity model excels with multiple protective features, including Overvoltage Protection (OVP), Overcurrent Protection (OCP), and Short-Circuit Protection (SCP). These features ensure that the device operates safely under various conditions. The iUniker power supply does not explicitly mention any safety features, which may be a significant consideration for users concerned about device safety during operation.
Power Consumption and Efficiency
The Arcity power supply is designed for high stability and low power consumption, which may lead to cost savings over time for users who need a reliable power source. The iUniker model, while efficient for its purpose, does not provide specific details on power consumption efficiency, making it harder to compare in this regard. If energy efficiency is essential for your setup, the Arcity unit may offer a more favorable long-term solution.
Price Comparison
At $8.99, the iUniker Raspberry Pi Power Supply is significantly cheaper than the Arcity unit priced at $21.98. Specifically, the Arcity power supply is about 145% more expensive than the iUniker model. However, this higher price point comes with added versatility and safety features, making it important for consumers to weigh the benefits against the cost when making their choice.
Which should you buy?
Ultimately, the choice between the iUniker Raspberry Pi Power Supply with Switch and the Arcity 5V 12V 24V Output Switching Power Supply Unit depends on your specific needs. If you are solely using Raspberry Pi 2, 3, or 3 B+ and prefer a lower price, the iUniker unit is a suitable option. However, if you require a versatile power supply capable of supporting various devices and appreciate additional safety features, the Arcity model is worth the investment despite its higher price.

