LRS-350-12 Switching Power Supply 348W 12V 29Amp Single Output (LRS Series 350W 12V) for LED Project

The go-to power supply for serious Christmas light enthusiasts If you're in the xLights/pixel light community, you already know Mean Well is the name to trust – and the LRS-350-12 delivers exactly what you need. My setup: I'm running a Kulp32 board and using FOUR of these power supplies to power my house Christmas display. They've been absolutely bulletproof through the entire season – rain, cold temperatures, hours of run time every night – zero issues. Why these work so well: Clean, stable 12V power keeps my pixels running flawlessly 29 amps gives me plenty of juice for multiple pixel strings Compact size makes mounting in my enclosure easy They run cool even during long evening shows No flickering, no weird pixel behavior, just reliable power For the xLights crowd: You know how frustrating power issues can be when you've spent hours sequencing your show. These just work. Set it and forget it. I don't worry about my display mid-season anymore. Quality build, reputable brand, and priced right when you're buying multiples like I did. Already planning to grab more for next year's expansion! If you're building a pixel display, don't cheap out on power supplies – grab these.

I’ve been using this MEAN WELL LRS-350-12 power supply for about six months now to run a big LED strip setup in my garage workshop, and it’s been rock solid. I’m pulling close to 25-26 amps continuously (around 300W) with multiple COB strips and some fans, and this thing doesn’t even get warm— the built-in fan kicks in quietly when needed and keeps everything cool. Hooked it up to a terminal block, adjusted the voltage trim pot to exactly 12.0V, and it’s held steady ever since, no ripple or droop even under full load. The build quality is typical Mean Well—thick metal case, good screw terminals that grip wires tightly, and all the protections you want (overvoltage, overload, short circuit). I originally bought it because my cheaper no-name supply kept shutting down and overheating on the same load. This one just works, day in and day out. Super reliable, quiet, and efficient. If you’re powering LEDs, a 3D printer farm, CNC router, or any project that needs a solid 12V chunk of power, you can’t go wrong with this Mean Well unit. Already planning to grab another for my next bench.

For such a low price I'm impressed by the quality! It keeps itself cool with the fan, and outputs nearly exactly 24.0v. Works perfect for my 3d printer projects!

Worked as a replacement PSU for my old CR10S. Been about a year now and it hasn't exploded or burn my house down, so... that's always a plus.

AWESOME little power supply for 100w HF amateur radio. No RF noise detected from the unit, and it's output voltage was easily set to 13.8 and stays there no matter the load placed on the unit.

To be fair, I only had this for about 2 weeks. Been using it daily with my ham radios and has worked great, though I have only pushed the supply no more than 15 amps. It stays cool where the fan doesn't even come on, I'm assuming there is a heat sensor to activate the fan when the unit gets warm. As a ham radio operator, this supply works fine for me, no birdies or noise detected on HF, and nothing noticed on the Spectrum Scope Display on my radio. I did hear very minor "hash" below 3MHz that was corrected with a .05uf capacitor. Edit... Almost a year later, the PS works well but I'm finding lots of interference coming out of the power supply going into my radios. So, while it does power the radios and anything needing 12volts, I can't recommend this for amateur radio use. It doesn't seem to have enough filtering for HF use.

Best PSU I’ve found so far. Works great.

I am a radio amateur (Ham) that operates on the High Frequency (H.F.) Band, (80 to 10 Meters). Most other switcher type power supply's that I previously used or tested have put out Radio Frequency Interference RFI (AKA "Birdies") in the HF Amateur radio bands. I have tested this power supply with a 27Amp resistive load, a O'scope and Spectrum Analyzer and have found, NO dectable H.F. Birdies. The power supplies voltage output is screwdriver adjustable from 11 to 14 VDC, and is settable for 120 or 20 VAC. This Mean Well LRS 350-12 delivers 348 Watts of clean power, Just add a line power cord, you are ready to go!

buena fuente

Mean Well, can never go wrong with this brand.

Excellent power supply