GeeekPi 27W Power Supply for Raspberry Pi 5 vs GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4
Updated August 2026 — The GeeekPi 27W Power Supply is the superior choice for Raspberry Pi 5 users, offering more versatility and safety features, while the 18W model is a budget-friendly option for Raspberry Pi 4 users.
The GeeekPi 27W Power Supply is the superior choice for Raspberry Pi 5 users, offering more versatility and safety features, while the 18W model is a budget-friendly option for Raspberry Pi 4 users.
Why GeeekPi 27W Power Supply for Raspberry Pi 5 is better
Power Delivery
Offers multiple output options for various devices
Safety Features
Includes more comprehensive protection measures
Performance
Higher wattage allows for better performance under load
Why GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4 is better
Price
More budget-friendly option
Compatibility
Includes adapter for older Raspberry Pi models
Certification
Comes with UL Listed and TUV certifications
Overall score
Specifications
| Spec | GeeekPi 27W Power Supply for Raspberry Pi 5 | GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4 |
|---|---|---|
| Brand | GeeekPi | GeeekPi |
| Input Voltage | 100-240V | 100-240V |
| Output Voltage | 5V, 9V, 12V, 15V | 5V |
| Safety Features | Over-current, over-voltage, short-circuit | Multi-protection |
| Cable Length | N/A | 120cm |
Dimension comparison
Introduction
When it comes to powering your Raspberry Pi, choosing the right power supply is crucial for performance and reliability. In this comparison, we will examine the GeeekPi 27W Power Supply for Raspberry Pi 5 and the GeeekPi 18W 5V 3.6A Power Supply for Raspberry Pi 4 to determine which option is best suited for your needs. Both power supplies have distinct features, price points, and compatibility that can influence your decision.
Compatibility
The GeeekPi 27W Power Supply for Raspberry Pi 5 is designed specifically for the Raspberry Pi 5, supporting both the 4GB and 8GB models. In contrast, the GeeekPi 18W Power Supply is tailored for the Raspberry Pi 4 but also includes a Type-C to Micro USB power adapter, making it compatible with the Raspberry Pi 3B and 3B+. This versatility makes the 18W model a more suitable choice if you plan to use multiple Raspberry Pi versions. However, if you own a Raspberry Pi 5, the 27W Power Supply is the clear winner in this category.
Power Delivery
Power delivery capabilities differ significantly between the two models. The GeeekPi 27W Power Supply offers multiple output options, including 5V at 5A, 9V at 3A, 12V at 2.25A, and 15V at 1.8A. This flexibility allows for efficient charging of various devices. Meanwhile, the GeeekPi 18W Power Supply provides a fixed output of 5V at 3.6A, which is sufficient for the Raspberry Pi 4 but may not be as versatile for other devices. For users who require a broader range of voltage outputs, the 27W model stands out as the better option.
Safety Features
Both power supplies are equipped with essential safety features to protect your devices from potential damage. The GeeekPi 27W Power Supply includes over-current protection, over-voltage protection, and short-circuit protection, ensuring the safety of connected devices. Similarly, the GeeekPi 18W Power Supply boasts multiple protection functions, including over-voltage, under-voltage, over-temperature, over-current, and short-circuit protection. While both power supplies provide solid safety measures, the 27W model's additional protections make it a slightly more reliable choice for safeguarding your technology.
Design and Portability
In terms of design, the GeeekPi 27W Power Supply is compact and portable, making it easy to carry for on-the-go use. This is particularly beneficial for users who travel frequently or need a reliable power source outside of their usual setup. The GeeekPi 18W Power Supply also features an extended cord of 120cm, which can enhance usability in certain scenarios. However, the convenience of the compact form factor of the 27W model ultimately makes it more appealing for users prioritizing portability.
Certification
Certification is an important factor to consider for safety and reliability. The GeeekPi 18W Power Supply comes with UL Listed Certification, TUV, and RoHS Certification, providing assurance of its quality and safety standards. On the other hand, there are no specific certification details provided for the GeeekPi 27W Power Supply. The presence of certifications in the 18W model may influence consumers looking for an additional layer of credibility when purchasing their power supply.
Pricing
Price is always a significant consideration when making a purchase decision. The GeeekPi 27W Power Supply is priced at C$21.99, whereas the GeeekPi 18W Power Supply is more budget-friendly at C$16.99. This C$5 difference may sway users who are looking for a more economical choice, especially if their needs are adequately met by the 18W model. However, for those who require the enhanced features and capabilities of the 27W model, the higher price may be justified.
Performance
Performance is a critical aspect when evaluating power supplies. The GeeekPi 27W Power Supply's higher wattage rating allows for better performance, especially when powering devices that require more energy. Its ability to deliver up to 5A at 5V gives it an edge in handling demanding applications. Conversely, the GeeekPi 18W Power Supply, while efficient for the Raspberry Pi 4, may not offer the same level of performance under heavier loads. Users should consider their specific use cases when assessing which power supply will deliver the necessary performance.
Which should you buy?
Choosing between the GeeekPi 27W Power Supply for Raspberry Pi 5 and the GeeekPi 18W Power Supply for Raspberry Pi 4 largely depends on your individual needs and preferences. If you own a Raspberry Pi 5 and require versatile power delivery, the 27W model is the ideal choice, offering greater output options and enhanced safety features. However, if you're looking for a more budget-friendly solution compatible with Raspberry Pi 4 (and some older models), the 18W Power Supply provides excellent value without compromising on essential safety features. Ultimately, your decision should be guided by the specific Raspberry Pi model you own and your power requirements.
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