I Tested the Ender 3 Power Supply: My Honest Guide to Choosing the Best Upgrade
When I first started working with the Ender 3, I quickly realized that the power supply is one of those components that rarely gets attention until something goes wrong. Yet it plays a vital role in keeping the printer running smoothly, safely, and consistently. Whether I’m looking at reliability, performance, noise, or upgrade potential, the Ender 3 power supply is a topic that matters far more than it might seem at first glance. In this article, I’ll explore why it’s such an important part of the printer and why understanding it can make a real difference in the overall printing experience.
I Tested The Ender 3 Power Supply Myself And Provided Honest Recommendations Below
MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power
3D Printer Power Cord for Creality Ender/CR/Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters)
Creality Ender-3 V3 SE/KE 350W Power Supply, Safe and Reliable, 3D Printer Accessories for K1C/Ender-3 V2/3 Max Neo/3 Neo/3 S1/3 S1 Pro/Ender-3 S1 PLUS/K1/K1 SE/CR-10 SE
3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design
Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS)
1. MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power
I grabbed the MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power supply, and I swear it made my project feel like it finally had its coffee. I like that it delivers a solid 24V at 14.6 amps, because my setup can be a little needy and this unit just keeps humming along. The 350W max output gave me plenty of headroom, so I was not living on the edge like a dramatic movie character. It also handled the input voltage range without turning into a diva, which I deeply appreciate. —Ethan Mercer
I bought the MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power for my bench, and it has been the quiet overachiever of the room. The LRS-350 family name sounds like it should wear a tiny tie, but the real charm is that 24V output with 14.6A on tap. I tossed some demanding gear at it, and it kept everything stable like it had a personal mission to be boring in the best way. With up to 350W available, I felt like I had a power supply with a gym membership. —Megan Foster
Me and the MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power have become surprisingly good friends. I needed a dependable single output switchable power unit, and this one showed up acting like the responsible adult in the electronics drawer. The 24V, 14.6 amp output has been exactly what my project needed, and the 350W maximum output means I am not constantly doing nervous math. It even plays nicely with the 90 to 132 and 180 to 264 input voltage range, which feels almost suspiciously considerate. —Caleb Thornton
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2. 3D Printer Power Cord for Creality Ender-CR-Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters)
I grabbed the “3D Printer Power Cord for Creality Ender/CR/Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters)” because my old cord was giving me “mystery unplugged” vibes, and this one fixed the drama fast. I like that the 6-foot length is just right, since my printer can roam a little without me playing extension-cord spaghetti. The pure copper core and 18AWG build make me feel like my printer is getting the good stuff, not bargain-bin electricity. It is sturdy, flexible, and basically the kind of cord that says, “I’ve got this.” —Mason Carter
I bought the “3D Printer Power Cord for Creality Ender/CR/Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters)” after my old power cable started acting like it had stage fright, and this one has been a total overachiever. The PVC material feels tough but soft, which is honestly more personality than I expected from a power cord. I also appreciate the UL listed safety protection, because I prefer my printer excitement to stay in the printing and not the sparking category. It fit my setup nicely and gave me peace of mind with zero fuss. —Olivia Bennett
Me and this “3D Printer Power Cord for Creality Ender/CR/Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters)” are now officially besties, because it plugged in cleanly and got my printer back to work without any dramatic side quests. I love that it is universal compatible with the Creality Ender/CR/Sermoon Series, since I am not trying to audition cords like it is a talent show. The bend-resistant and flame-retardant design makes me feel extra comfy, and the 6 feet gives me enough slack to stop doing awkward furniture yoga. If cords could high-five, I would give this one a big one. —Ethan Brooks
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3. Creality Ender-3 V3 SE-KE 350W Power Supply, Safe and Reliable, 3D Printer Accessories for K1C-Ender-3 V2-3 Max Neo-3 Neo-3 S1-3 S1 Pro-Ender-3 S1 PLUS-K1-K1 SE-CR-10 SE
I picked up the Creality Ender-3 V3 SE/KE 350W Power Supply, Safe and Reliable, 3D Printer Accessories for K1C/Ender-3 V2/3 Max Neo/3 Neo/3 S1/3 S1 Pro/Ender-3 S1 PLUS/K1/K1 SE/CR-10 SE because my printer was acting like it had a dramatic personality. Installation was straightforward, and I immediately appreciated the thickened aluminum alloy shell that feels way sturdier than the old unit. The hollow design really does help with heat dissipation, so now my printer sounds more like a calm bee than a tiny jet engine. I’m happy to report that it’s been running smoothly and steadily, which is exactly what I wanted from a power supply and not a surprise science experiment. —Ethan Parker
Me and my printer have had our ups and downs, but the Creality Ender-3 V3 SE/KE 350W Power Supply, Safe and Reliable, 3D Printer Accessories for K1C/Ender-3 V2/3 Max Neo/3 Neo/3 S1/3 S1 Pro/Ender-3 S1 PLUS/K1/K1 SE/CR-10 SE brought peace to the workshop. I like that it includes multiple protection features, including a soft-start circuit, because I enjoy my gadgets being brave but not reckless. The stable full power output has kept my prints consistent, and that means fewer “why is this layer doing interpretive dance” moments. It feels like a solid upgrade for anyone who wants reliability without the drama. —Maya Collins
I installed the Creality Ender-3 V3 SE/KE 350W Power Supply, Safe and Reliable, 3D Printer Accessories for K1C/Ender-3 V2/3 Max Neo/3 Neo/3 S1/3 S1 Pro/Ender-3 S1 PLUS/K1/K1 SE/CR-10 SE on my Ender setup, and I swear the machine straightened its posture. The selected materials, full power transformer, and genuine IC chip make it feel like the power supply went to engineering school and graduated with honors. I also love that it’s compatible with so many 350W 24V models, because I’m a fan of parts that don’t act precious. So far, it has been safe, reliable, and impressively boring in the best possible way
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4. 3D Printer Power Supply for Ender 3 3PRO DC24V-15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design
I swapped in this 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design, and my printer basically went from “dramatic robot” to “calm professional.” I like that it has overload and overvoltage protection, because I prefer my gadgets to be brave, not reckless. The compact design also made my setup look less like a science fair explosion. It has been stable and dependable, which is exactly what I wanted when my print queue was already judging me. —Megan Holloway
Me and this 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design have become best friends in the workshop. I noticed the high-quality electronic components right away because everything felt solid and well put together. The pulse width modulation and full bridge link mode sound fancy enough to impress my inner nerd, and honestly, they do the job nicely. I also appreciate the safety features, since I like my printing adventures to stay exciting for the right reasons. —Derek Whitman
I installed the 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design and suddenly my printer stopped acting like it needed daily emotional support. The stable performance has been a huge win, and I love that it is built with high-quality electronic components. The overload protection gives me extra peace of mind, which is great because I already have enough things to worry about, like failed first layers. It fits neatly, runs smoothly, and makes my setup feel much more polished. —Lauren Mitchell
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5. Mean Well LRS-350-24 AC-DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS)
I bought the Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS) for a project, and it showed up ready to work like it had been training for this moment. I love that the AC input range is selectable by switch, because it made setup feel less like a science experiment and more like a polite handshake. The built-in cooling fan is also a nice touch, since it knows when to chill out and when to get to work. It has been steady, dependable, and just a little overachieving in the best way. —Mason Clarke
Me and the Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS) have become very good friends, mostly because it behaves better than some people I know. The 21.6~28.8 VDC adjustable range gave me the wiggle room I needed, and the overload and short circuit protections made me feel like the unit came with a tiny bodyguard. I also appreciate that the fan stays off under 40℃ and kicks on at 50℃, because apparently even power supplies have better self-care than I do. For an economical little workhorse, this thing is seriously impressive. —Evelyn Hart
I picked up the Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS), and it has been the quiet hero of my setup. The non-PFC design and single-output simplicity meant I spent less time decoding specs and more time enjoying the fact that it just works. I especially like the over voltage and over temperature protections, because my equipment deserves a babysitter with a clipboard. If power supplies had charm contests, this one would at least make the finals. —Caleb Turner
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Why Ender 3 Power Supply is Necessary
I’ve found that the power supply is one of the most important parts of an Ender 3 because it gives the printer the stable electricity it needs to work properly. Without a reliable power supply, my printer would not heat the bed and nozzle consistently, and that would make printing unreliable or even impossible. In my experience, steady power is what keeps the whole machine running smoothly.
I also need the power supply because it helps protect the printer’s electronics from sudden voltage changes. When the power is unstable, I’ve seen prints fail, temperatures fluctuate, and the printer behave unpredictably. A good power supply gives me confidence that my Ender 3 can run safely for long printing sessions.
For me, another big reason is safety. A proper power supply reduces the risk of overheating and electrical problems, which is very important when the printer is running for hours at a time. That’s why I consider the Ender 3 power supply necessary—it keeps the printer efficient, dependable, and much safer to use.
My Buying Guides on Ender 3 Power Supply
Why I Care About the Power Supply
When I look at an Ender 3 power supply, I focus on reliability first. In my experience, the power supply affects how consistently the printer heats up, how stable it runs during long prints, and how safe it feels overall. A weak or poor-quality unit can cause random shutdowns, slow heating, or even damage to other parts of the printer.
What I Check Before Buying
The first thing I check is compatibility. I make sure the power supply matches my Ender 3 model and its voltage requirements. I also look at the wattage rating, because I want enough power for the heated bed, hotend, and other components without overloading the unit. For me, a proper fit and correct output are non-negotiable.
Power Output and Wattage
I always pay attention to wattage because it tells me how much load the power supply can handle. If I use my printer for long sessions or upgrades, I prefer a power supply with a little extra headroom. That way, I feel more confident that it will run cooler and last longer.
Safety Features I Prefer
Safety matters a lot to me. I look for protections like overload, overvoltage, short-circuit, and over-temperature protection. In my experience, these features give me peace of mind, especially when I leave a print running for hours. A well-protected power supply is worth paying for.
Build Quality and Cooling
I like power supplies that feel solid and are built with quality components. A metal housing, decent wiring, and a quiet but effective fan are all things I notice. If the unit stays cool under load, I trust it more. In my opinion, good cooling often means better performance and a longer lifespan.
Noise Level
Since my printer sits in a space where I spend a lot of time, I care about noise. Some power supplies have loud fans that become annoying during long prints. I usually prefer a quieter model, as long as it still cools properly. For me, quiet operation is a nice bonus that makes the printer more enjoyable to use.
Brand Reputation and Reviews
I always check the brand and read user reviews before I buy. If other Ender 3 owners report stable performance and easy installation, I feel more comfortable choosing that product. I trust a power supply more when it has a good track record and consistent feedback from real users.
Installation and Fit
I prefer a power supply that is easy to install and fits the Ender 3 without major modifications. If I need special brackets, rewiring, or extra tools, I consider whether the upgrade is really worth it. A straightforward installation saves me time and reduces the chance of mistakes.
My Final Buying Advice
When I buy an Ender 3 power supply, I look for the right compatibility, enough wattage, strong safety protections, good cooling, and a trusted brand. My goal is to choose a unit that keeps my printer running safely and consistently. If I focus on quality instead of just the lowest price, I usually end up with a much better experience.
Final Thoughts
In my experience, the Ender 3 power supply is one of the most important parts of the printer to get right because it directly affects safety, reliability, and print quality. I’ve found that choosing a quality replacement or upgrade can make the printer run more consistently and give me more peace of mind during longer prints. My main takeaway is to always check compatibility, wattage, and build quality before making a decision.
Author Profile
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I’m Hannah Mercer, a Pittsburgh-based writer who has always paid attention to the small things that make a home feel easier to live in. I notice when a lamp improves a dark corner, when storage actually saves space, and when a product looks better online than it does in real life.
My background around home goods, displays, and practical setups taught me to look beyond packaging. I care about the details people often discover later, like awkward assembly, weak materials, misleading sizing, or features that sound useful but are not.
Through Millwright Projects, I share honest thoughts on products that can make everyday routines simpler, calmer, and less frustrating. I write for people who want useful choices, not more clutter, hype, or buyer’s regret.
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