MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power

First and foremost, you always need to ensure you buy quality PSUs. These are high voltage devices pulling high amperage and are connected directly to your mains. Poor quality PSUs WILL cause a house fire. Mean Well is a well-respected brand which is known to be both reliable and safely manufactured.One way to check if your Mean We'll PSU is genuine is to look for the MW logo on the PCB. If you purchased this supply, you can find the logo right behind the fan. You may need to use a small piece of plastic to move the blades while using your flash to locate it. I've attached a picture which shows about where that is.This itself isn't enough to guarantee the safety of the device, though. Often you'll find third parties selling "refurbished" supplies they pulled out from failed devices.For this matter, the best reassurance is to check the QC Report. If you search for "Mean Well Quality Control Inspection Report", you'll find the official tool for Mean Well. Type in your serial number (found on the small barcode on the side of the device) and download the PDF report. If you bought the device new, the report should have been published no longer than a handful of months prior.Now if you want more reassurance, Mean Well states that they stamp the serial number on the PCB itself also. I wouldn't recommend this for a beginner, but you can open the device up, locate the serial number, and validate that it is the same as the number on the case.

As a 3D printing enthusiast the first thing I replace on 3d printer is the power supply! The MEAN WELL LRS-350-24 power supply is one of the best, most reliable ones there is! The LRS-350-24 delivers a rock-solid 24V 14.6A output, which is perfect for powering my 3D printer. What really sets this power supply apart, however, is its exceptional reliability and build quality. MEAN WELL is a well-respected brand in the power supply industry, and it's clear why. This unit is built like a tank, with high-quality components and a rugged design that can withstand the rigors of heavy use.

This item is good quality it’s working great

Looks like a legitimate meanwell power supply, wired up nice and have had no issues.Can’t beat the price/quality.

My Ender-3 was shorting out in the middle of prints. Replaced the power supply with this one and the issue hasn't popped up since.

This is a good power supply, but the fan is annoyingly loud. It's not "loud" like defective loud, but it is quite prominent when it kicks on. I chose to go fanless, so I returned these. I was pulling about 200 watts through it, and the fan kick on quite often.

Meanwell has made quality power supplies for a variety of applications. I've purchased this 350W 24V version a number of times to replace the PS on a couple different 3D printers and other electronics when the stock PS is either underpowered or an inferior PS. Meanwell PSs haven't failed me yet.

Meanwell PSUs (at least genuine ones) have always been reliable, and this is no exception.I have several of these in-use for various projects, from 3D Printer and CNC machine to some projects still in development. I also have various other meanwell PSUs in use for lower power applications like LED lighting and such.The only downside for this particular PSU is that it's actively cooled with a small fan, and that fan is a little whiney. I know a few folks have researched into alternative quieter fans (many of which don't actually push enough air, and don't meet their listed specs), but to be honest it's not noisy enough to really be an issue for me, so I haven't bothered replacing the fan.The fan isn't on all the time (e.g.: not when 3D Printer or CNC are idle, and not driving motors/heaters etc), and when it is on the noise is drowned out by the noise of the rest of the equipment (stepper motors, CNC spindle, extruder hot-end blower fan etc)