Mean Well 350W LED Switching Power Supply - SE / LRS Series - Cooling Fan - Enclosed - 24 VDC
Best reliable power source for custom 24V industrial and DIY projects.
This Mean Well LRS-350-24 AC/DC Switching Power Supply delivers a robust 350.4W of power with a stable 24V DC output at 14.6A. Designed for cost-effectiveness, it features a selectable AC input for 115VAC compatibility, ideal for US and Canadian applications. Essential protections guard against short circuits, overloads, over voltage, and over temperature. A built-in cooling fan with intelligent ON-OFF control manages thermal performance, activating at 50℃ and deactivating below 40℃. The output voltage is conveniently adjustable from 21.6V to 28.8V DC, offering flexibility for various needs.
$253.99
Owner Satisfaction
4.6
/ 5
Category Rank
197
/ 1062
#197 in Computer Power Supplies
Price vs Category Average
-73%
Below average
Maximum Power Output
350.4
/ watts
Who it's for
- Industrial engineers needing consistent, long-term power stability
- System builders requiring maximum power output without thermal throttling
- Safety-conscious technicians protecting sensitive LED lighting arrays
Who should skip it
- Homeowners or office workers requiring a silent environment
- Installers working in outdoor or high-humidity locations
- DIY hobbyists lacking formal electrical wiring experience
Performance breakdown
Thermal Management
Intelligent fan control effectively balances cooling needs with operational noise levels.
Output Stability
Delivers consistent, reliable power for sensitive industrial and lighting applications.
Voltage Flexibility
Adjustable output range provides excellent versatility for custom voltage requirements.
Safety Integration
Comprehensive protection suite guards against common electrical faults and thermal spikes.
Installation Versatility
Standard form factor ensures straightforward integration into most existing enclosures.
Input Compatibility
Selectable AC input range is perfect for standard North American power.
Key Specs
Maximum Power Output
350.4 watts
Output Voltage
24 VDC (adjustable 21.6-28.8 VDC)
Output Current
14.6 A
Input Voltage
Selectable 115VAC range
Protections
Short circuit, Overload, Over voltage, Over temperature
Cooling
Built-in cooling FAN with ON-OFF control
Form Factor
ATX
Number of Ports
1
Features
- Reliable 350.4W power output
- Stable 24V DC single output
- Built-in cooling fan with auto control
- Comprehensive protection features
- Adjustable output voltage range
- Cost-effective Non-PFC design
- Selectable AC input for broad compatibility
What customers say
Customers generally hold the Mean Well 350W SE/LRS series power supply in very high regard, recognizing it as a robust and reliable workhorse for demanding applications, particularly in the LED and automation sectors. The overwhelming sentiment centers on the brand's reputation for delivering consistent, stable power output, which is crucial for protecting sensitive electronics. Reviewers frequently praise the unit's build quality, noting the sturdy enclosed design and the precise voltage adjustment potentiometer, which allows for fine-tuning the 24 VDC output. Many users highlight the longevity of these units, often replacing cheaper, failed supplies with the Mean Well model and experiencing immediate improvements in system stability. The high efficiency of the unit is also a common positive point, contributing to less wasted heat compared to lower-tier alternatives, which is vital when the unit is enclosed. The primary point of friction mentioned in reviews relates to the integrated cooling fan. While necessary for maintaining optimal thermal performance at 350W, several users describe the fan as noticeably loud, especially when the unit is operating under moderate to heavy load or installed in noise-sensitive environments (like residential setups or quiet offices). However, most users acknowledge that this is a necessary trade-off for high-power, enclosed supplies. Overall, the consensus is that the superior reliability and performance far outweigh the minor inconvenience of the fan noise, solidifying its status as a premium, high-value component that justifies its price point.
Know before you buy
Yes, the output voltage is adjustable between 21.6V and 28.8V DC. This allows you to fine-tune the output to meet the specific requirements of your connected equipment.
The fan features intelligent ON-OFF control to manage thermal performance. It automatically activates when the internal temperature reaches 50℃ and turns off once the temperature drops below 40℃.
Yes, it features a selectable AC input range designed specifically for 115VAC compatibility, making it suitable for use in the United States and Canada.
This unit is equipped with comprehensive protections against short circuits, overloads, over-voltage, and over-temperature conditions to ensure safe operation.
While this unit shares the ATX form factor, it is primarily designed for industrial control systems and LED lighting applications. Please verify that your computer's specific voltage and connector requirements align with this 24V DC single-output supply before use.
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