MEAN WELL LRS-100-24 AC/DC Switching Power Supply 108W 24V 4.5A Single Output fo vs Mean Well EDR-120-24 Single Output DIN Rail Power Supply 24V 5 Amp 120W
Updated August 2026 — The MEAN WELL LRS-100-24 offers superior energy efficiency and a lower price, making it a better choice for budget-conscious users. However, the EDR-120-24 provides higher output power for demanding applications.
The MEAN WELL LRS-100-24 offers superior energy efficiency and a lower price, making it a better choice for budget-conscious users. However, the EDR-120-24 provides higher output power for demanding applications.
Why MEAN WELL LRS-100-24 AC/DC Switching Power Supply 108W 24V 4.5A Single Output fo is better
price
LRS-100-24 costs C$32.95 compared to EDR-120-24 at C$42.99
efficiency
LRS-100-24 has 90% efficiency, while EDR-120-24's efficiency is unspecified
protection features
LRS-100-24 explicitly lists multiple protection features
Why Mean Well EDR-120-24 Single Output DIN Rail Power Supply 24V 5 Amp 120W is better
output power
EDR-120-24 provides 120W compared to LRS-100-24's 108W
current output
EDR-120-24 delivers 5A versus LRS-100-24's 4.5A
mounting style
EDR-120-24 is designed for DIN rail mounting
Overall score
Specifications
| Spec | MEAN WELL LRS-100-24 AC/DC Switching Power Supply 108W 24V 4.5A Single Output fo | Mean Well EDR-120-24 Single Output DIN Rail Power Supply 24V 5 Amp 120W |
|---|---|---|
| Output Voltage | 24V | 24V |
| Output Current | 4.5A | 5A |
| Max Power | 108W | 120W |
| Efficiency | 90% | N/A |
| Protection | Yes | Assumed |
Dimension comparison
Overview of the Products
The MEAN WELL LRS-100-24 and the Mean Well EDR-120-24 are two notable power supplies designed for different applications. The LRS-100-24 is priced at C$32.95, while the EDR-120-24 costs C$42.99. Both products come from the reputable MEAN WELL brand, known for reliability and quality in power supply solutions.
The LRS-100-24 is a compact unit designed for industrial and commercial use, providing a single output of 24V at 4.5A, translating to a maximum power of 108W. In contrast, the EDR-120-24 offers a slightly higher output of 24V at 5A, with a maximum power output of 120W. This difference in specifications may cater to diverse power needs depending on the application.
Design and Build Quality
The LRS-100-24 features a slim 30mm profile and a metal mesh housing that enhances heat dissipation, making it suitable for fanless operation. In comparison, the EDR-120-24 is designed for DIN rail mounting, which allows for easy installation in control panels or cabinets. While both units are built with durability in mind, the LRS-100-24's rugged construction is highlighted by its capability to operate at high altitudes, up to 5,000 meters.
Both products are engineered for efficiency and safety, but the LRS-100-24 takes a slight edge with its 100% burn-in testing and extensive safety certifications, including CE and IEC/EN standards. The choice between the two may depend on the specific installation requirements and whether space-saving design or mounting style is a priority.
Energy Efficiency
When considering energy efficiency, the LRS-100-24 stands out with an impressive 90% efficiency rating. This high level of efficiency minimizes power loss during operation, which is a critical factor for users concerned about energy consumption. On the other hand, the EDR-120-24 does not specify its efficiency rating, leaving potential buyers without a clear view of its energy performance.
Moreover, the LRS-100-24 is designed with a low no-load power consumption of less than 0.5W, further contributing to its energy-efficient profile. For users prioritizing lower energy costs and environmental impact, the LRS-100-24 is likely the more appealing option.
Output Specifications
The LRS-100-24 delivers a stable output of 24V at 4.5A, yielding a total output power of 108W. This is well-suited for various applications requiring reliable voltage and current. In contrast, the EDR-120-24 offers a slightly higher output of 24V at 5A, with a maximum power capacity of 120W.
This slight difference means that the EDR-120-24 can provide an additional 12W of power, which could be crucial for applications demanding higher current. Users must assess their specific power requirements to determine which output specification best suits their needs.
Protection Features
Both the LRS-100-24 and the EDR-120-24 are equipped with essential protection features designed to ensure safe operation. The LRS-100-24 boasts full protection against overvoltage, overload, and short circuits, which are vital for preventing damage to connected devices. Additionally, it features automatic recovery from overload and short circuit conditions.
Although the EDR-120-24 does not elaborate on its protection features, it is reasonable to assume it includes similar safety mechanisms, given MEAN WELL’s reputation for quality. However, the explicit mention of protective features in the LRS-100-24 provides users with greater assurance regarding its safety during operation.
Application Versatility
The LRS-100-24 is particularly suited for industrial automation systems, control panels, electronic instruments, and electromechanical equipment. Its compact design and high-efficiency operation make it an ideal choice for applications where space and energy savings are critical.
The EDR-120-24, with its DIN rail design, is also versatile but is more tailored for environments where mounting on a rail is advantageous, such as in control cabinets. Depending on the specific application, users may find one power supply more fitting than the other, leading to a more efficient setup.
Pricing and Value
The LRS-100-24 is priced at C$32.95, making it a more economical choice compared to the EDR-120-24, which retails for C$42.99. The price difference reflects the output capabilities of each unit, with the EDR-120-24 offering a higher maximum power output.
When evaluating value, the LRS-100-24 provides excellent performance at a lower cost, appealing to budget-conscious buyers. However, those needing the higher output of the EDR-120-24 may justify the additional expense for the extra power and potential application benefits.
Which should you buy?
Choosing between the MEAN WELL LRS-100-24 and the Mean Well EDR-120-24 largely depends on your specific power supply needs. If you require a compact, energy-efficient solution with robust protection features for industrial applications, the LRS-100-24 at C$32.95 is an excellent choice. However, if your application demands a bit more power with a maximum output of 120W and you prefer a DIN rail mounting option, the EDR-120-24 at C$42.99 may be worth the additional investment. Ultimately, both power supplies uphold MEAN WELL’s reputation for quality, leaving users to weigh their individual requirements against the distinct advantages of each model.
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