Mean Well EDR-120-24 Single Output DIN Rail Power Supply 24V 5 Amp 120W vs Lian Li SP850 V2 Gold 850 Watt SFX Form Factor Power Supply

Overview of the Products

In this comparison, we are looking at two distinct power supplies: the Mean Well EDR-120-24 and the Lian Li SP850 V2 Gold. The Mean Well power supply is priced at C$42.99, while the Lian Li model is significantly higher at C$194.23. Each product targets different usage scenarios, from basic applications to high-performance computing.

The Mean Well EDR-120-24 is a single-output DIN rail power supply that provides 24V and 5 Amps, equating to a maximum output power of 120 Watts. On the other hand, the Lian Li SP850 V2 Gold boasts an impressive 850 Watts, making it suitable for demanding PC builds. This price difference reflects the varied capabilities and applications of both products in the power supply market.

Power Output Comparison

The power output of a power supply is crucial for determining its suitability for various applications. The Mean Well EDR-120-24 delivers a maximum output power of 120 Watts, which is adequate for lower-power devices or systems that do not require excessive energy. Its output voltage is 24V, and it can sustain an output current of 5 Amps.

Conversely, the Lian Li SP850 V2 Gold offers a robust 850 Watts of power, making it more suitable for high-performance gaming rigs or workstations with multiple components such as powerful graphics cards and CPUs. The significant difference in power output—850 Watts for Lian Li versus 120 Watts for Mean Well—highlights the Lian Li's ability to support more demanding hardware configurations.

Form Factor and Design

In terms of design, the Mean Well EDR-120-24 is a DIN rail power supply, making it ideal for industrial or commercial applications where space and mounting options are a consideration. This form factor allows for easy installation in control panels or enclosures.

In contrast, the Lian Li SP850 V2 Gold is designed as a compact SFX form factor power supply, which is specifically suited for small form factor cases. This design not only adheres to the SFX specifications but also facilitates better airflow and cooling, thanks to its upgraded 92mm fluid dynamic bearing fan. The choice of form factor should align with the user's case and installation preferences.

Efficiency and Certification

Efficiency is a vital aspect of power supplies, impacting both performance and electricity costs. The Mean Well EDR-120-24 is designed for basic efficiency in its class, delivering reliable power at 24V without specific mention of efficiency ratings.

On the other hand, the Lian Li SP850 V2 Gold is ATX 3.1 certified, which means it meets high standards of efficiency and reliability, particularly for modern systems. This certification indicates that it can handle transient power spikes, making it suitable for high-performance components. The SP850's design also prioritises low-noise operation, making it a more appealing option for users concerned about acoustics.

Modular vs. Non-Modular Cabling

Cabling is another key differentiator between these two models. The Mean Well EDR-120-24 has a fixed cabling system, which means all cables are permanently attached to the unit. This can lead to cluttered setups if not managed properly, as unnecessary cables may take up space.

In contrast, the Lian Li SP850 V2 Gold features fully modular cabling. This allows users to connect only the cables they need for their system, reducing clutter and improving airflow within the case. Modular systems like that of the Lian Li are generally preferred for custom builds, as they provide flexibility and ease of installation.

Cooling Solutions

Cooling solutions greatly affect the performance and longevity of a power supply. The Mean Well EDR-120-24 does not specify a dedicated cooling system, which may limit its performance in demanding environments.

However, the Lian Li SP850 V2 Gold is equipped with a premium 92mm fluid dynamic bearing fan. This design not only enhances cooling efficiency but also contributes to quieter operation. The use of high-quality components ensures that the Lian Li can maintain optimal thermal performance even under heavy loads, making it a more reliable choice for high-performance systems.

Target Audience and Use Cases

The Mean Well EDR-120-24 is aimed at users who require a straightforward, reliable power supply for basic applications, such as industrial control systems or low-power devices. Its low price point makes it accessible for users who do not need high wattage.

Conversely, the Lian Li SP850 V2 Gold is tailored for gamers and professionals who demand high performance from their systems. With features like high wattage, modular cabling, and superior cooling, this power supply is a better fit for advanced gaming setups or workstations that require stable power delivery for demanding tasks.

Which should you buy?

Choosing between the Mean Well EDR-120-24 and the Lian Li SP850 V2 Gold ultimately depends on your specific needs and budget. If you are looking for a cost-effective solution for basic power needs, the Mean Well EDR-120-24 at C$42.99 is a solid choice. However, if you require a robust power supply capable of supporting high-performance components and are willing to invest C$194.23, the Lian Li SP850 V2 Gold offers superior power, efficiency, and flexibility. Assess your system requirements and budget carefully to determine which power supply aligns best with your needs.