MEAN WELL LRS-350-12 Switching Power Supply — 12V 29A 348W for LED Projects

Overview

The MEAN WELL LRS-350-12 is a compact, single-output switching power supply designed to power LED installations with reliability and clarity. It delivers a steady 12 volts at up to 29 amps, equating to as much as 348 watts of robust output when your project demands bright, uniform performance across modules or strips. Built for industrial and hobbyist setups alike, this unit pairs straightforward wiring with versatile mains capability.

Designed for real-world use, the LRS-350-12 balances performance with practical features that matter when devices sit on a rack, in a cabinet, or mounted near signage. The result is a power source that can support consistent brightness without frequent adjustments, while remaining compact enough to fit within typical enclosures.

Key specifications

• Output Voltage: 12V; Rated Current: 29A; Rated Power: 348W
• Input Voltage Range: 90-132VAC or 180-264VAC by internal switch
• Default input setting: 115VAC for US and CA; UL and CE certified
• Cooling control: Built-in fan ON-OFF based on temperature (FAN ON at 50°C; FAN OFF below 40°C)
• Protections: Short circuit, overload, over voltage, and over temperature protection

Real-world benefits and use cases

For LED panels, strips, or signage, a solid 12V supply helps maintain uniform light across the array, reducing the need for frequent recalibration. The dual input range makes it adaptable to different power mains without extra adapters, while UL and CE certifications support safe, compliant integration in your space.

• Wide input range supports diverse installations, from home studios to commercial displays
• Automatic fan control can help manage temperatures while keeping noise levels in check
• Comprehensive protections help protect connected devices from common electrical faults

Practical applications

Use this 12V supply for LED panels, architectural lighting, digital signage, or small-stage lighting rigs where a single source powers a cluster of modules. With 348W capacity, you get a healthy margin for mid-sized arrays while preserving efficiency and reliability.

Safety, installation, and care

Plan your wiring with standard best practices and allow for adequate ventilation. The built-in fan control acts as a thermal safeguard, but consider ambient temperature and load duration to extend service life and maintain performance.