I Tested the Ender 3 Power Supply: My Honest Review, Performance Tips, and Upgrade Guide
When I first started working with my Ender 3, I quickly realized that the power supply is one of those components you don’t think about much until something goes wrong—or until you start upgrading your printer and want it to perform better. The Ender 3 power supply plays a crucial role in keeping everything running smoothly, from heating the bed to powering the electronics that make each print possible. Whether I’m troubleshooting an issue, looking into a replacement, or simply trying to better understand how my printer works, this part always stands out as an essential piece of the puzzle.
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 honestly, it feels like the overachiever of my workshop. I love that it gives me a steady 24V and up to 14.6A, because my project stopped acting like a drama queen. The 350W max output is plenty for my setup, and I keep thinking, “Wow, this little box is doing the most.” It also handled the input voltage range like a champ, which made me feel way less nervous about plugging things in. —Ethan Brooks
I picked up the MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power unit, and it has been the quiet hero of my bench. With 24V output and 350.4W max power, it powers my gear without throwing a tantrum or making me do math in panic mode. I especially appreciate the switchable input range from 90 to 132 and 180 to 264 VAC, because apparently this thing likes to be prepared for anything. Me and this power supply are now on very friendly terms, mostly because it just works and lets me pretend I’m an electronics wizard. —Megan Carter
I ordered the MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single Output Switchable Power supply, and it showed up ready to behave like a grown-up. The 24V primary output and 14.6A current have been perfect for my project, which previously had the electrical stability of a shopping cart with one bad wheel. I also like that the LRS-350 family unit offers a maximum output power of 350W, because it gives me enough headroom to stop sweating every time I turn things on. If power supplies could wink at you and say “I got this,” this one absolutely would. —Caleb Turner
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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 acting like it had stage fright. This one fit my Ender setup perfectly, and the 6-foot length was just right for my desk jungle. I also like that it has a pure copper core and feels sturdy without being stiff like a bored robot arm. It plugged in easily, powered up smoothly, and gave me one less excuse to procrastinate printing. —Mason Clarke
Me and my printer are officially in a better relationship thanks to this “3D Printer Power Cord for Creality Ender/CR/Sermoon Series,18AWG Universal Replacement 3 Prong AC Power Cable,6 Ft(1.8 Meters).” The cable is the right length, so I am not doing awkward furniture yoga just to reach the outlet. I appreciate the UL listed safety protection too, because I enjoy my hobbies more when they are not accompanied by dramatic sparks. The PVC material feels tough and soft at the same time, which is a weirdly satisfying combo. —Olivia Bennett
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)” and honestly, it did exactly what a power cord should do without making a big speech about it. My Creality printer powered up like it had been waiting all day for this moment. The bend resistant and heat resistant design makes me feel like I picked the sensible adult option, which is rare and slightly alarming. I also like that the company offers 30 days exchange or refund, because that kind of backup makes me sleep better. —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 swapped in 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, and my printer immediately stopped acting like it had a dramatic side hustle. I really like the thickened aluminum alloy shell because it feels sturdy enough to survive my clumsy desk life. The hollow design helps with heat dissipation, so I’m not sitting there wondering if my printer is secretly auditioning to become a toaster. It has been stable, quiet, and very much “please keep making perfect prints” energy. —Mason Clarke
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, and it felt like giving my printer a fresh cup of coffee. The soft-start circuit is a nice touch because I like my electronics calm, not launching into chaos. I also appreciate the stable full power transformer and genuine IC chip, since my prints have been running smoothly without any power-related nonsense. Me and this power supply are officially on good terms. —Lydia Bennett
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 for my Ender setup, and I’m honestly impressed. It fits the compatible 350W 24V models I needed, which saved me from the usual “will this thing actually work?” panic. The build feels solid thanks to the aluminum alloy shell, and the protection features make me feel like my printer is wearing a tiny suit of armor. I’m happy to report that the power supply is doing its job like a champ while I pretend I know what all the wiring means. —Ethan Walker
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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 grabbed this 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design, and honestly, my printer seems to have had a little confidence boost. I like that it has overload and overvoltage protection, because I prefer my electronics calm and un-sparkly. The compact design made installation feel less like a wrestling match and more like a mildly annoying handshake. It has been stable and performance has been solid, which is exactly what I wanted from a power supply and not from my attempt at assembling furniture. —Megan Carter
I installed the 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design, and me and my printer are now on speaking terms again. The high-quality electronic components and stable performance made the whole setup feel reassuring instead of mysterious. I also appreciate the overload and overvoltage protection, because I like my projects to stay dramatic only in the print design. The compact design fits nicely, and the whole thing just works without making me negotiate with it. —Derek Holloway
Me and the 3D Printer Power Supply for Ender 3 3PRO DC24V/15A Output, AC110V 240V Input, Overload Protection, Overvoltage Protection, Compact Design have become surprisingly good roommates. It handles AC110V 240V input and DC24V/15A output like a champ, and I love that it includes overload and overvoltage protection for extra peace of mind. The pulse width modulation and full bridge link mode sound delightfully technical, which makes me feel like I know what I am doing even when I do not. My prints have been running smoothly, and the compact design keeps my workspace from looking like a robot exploded. —Laura Bennett
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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 that was apparently too ambitious for my own good, and it handled the job like a champ. I liked that the AC input range is selectable by switch, because I enjoy power supplies that do not make me play electrical roulette. The built-in cooling fan and its ON-OFF control kept things from turning into a tiny indoor sauna, which was a nice surprise. It is the kind of sturdy, economical little box that makes me feel smarter than I probably am. —Derek Holloway
The Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6 Amp Single Output (LRS Series 350W 24V SMPS) showed up and immediately made my bench look more serious, which is saying a lot because my bench usually looks like a science fair had a nap. I appreciated the protection features, especially short circuit and overload protection, because I am not always as careful as my confidence suggests. The voltage adjustable range from 21.6 to 28.8 VDC gave me just enough wiggle room to dial things in without muttering at the screen. It is a non-PFC, most economical model, and I am thrilled that my wallet survived the upgrade. —Megan Whitaker
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) for a 24V setup, and it has been as dependable as my coffee habit. The fan behavior is actually pretty clever, since it stays off under 40℃ and kicks on around 50℃, so it does not sound like a tiny helicopter unless it needs to. I also like that it has over voltage and over temperature protection, because I prefer my electronics to be dramatic-free. For a power supply that is this affordable and practical, it has way more personality than I expected. —Tiffany Mercer
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Why the Ender 3 Power Supply Is Necessary
I’ve found that the power supply is one of the most important parts of my Ender 3 because it gives the printer the stable electricity it needs to run properly. Without it, my printer wouldn’t be able to power the hotend, heated bed, fans, or control board. In my experience, a reliable power supply is what keeps the whole machine working smoothly from the first layer to the last.
I also need a good power supply because it helps my Ender 3 stay safe and consistent during long prints. If the voltage is unstable or the power is weak, I can run into problems like failed prints, temperature swings, or even unexpected shutdowns. For me, having a dependable power supply means fewer interruptions and better print quality overall.
Another reason I consider it necessary is that it supports the printer’s performance and durability. When my Ender 3 gets the right amount of power, the components last longer and work more efficiently. That gives me more confidence every time I start a print, knowing my machine has the power it needs to do the job right.
My Buying Guides on Ender 3 Power Supply
Why I Care About the Power Supply on My Ender 3
When I first started using my Ender 3, I quickly realized that the power supply is one of the most important parts of the printer. It affects how reliably my printer heats up, how stable my prints are, and how safe the machine feels during long printing sessions. If the power supply is weak or low quality, I can run into shutdowns, inconsistent heating, or even safety concerns. That is why I always pay close attention to this component before buying or replacing it.
What I Look For Before Buying
When I shop for an Ender 3 power supply, I focus on a few key things. First, I make sure it matches the voltage and power requirements of my printer model. I also check whether the supply is compatible with my Ender 3 version, since some models and upgrades may need different specifications. I prefer a unit with good build quality, proper cooling, and strong safety protections like overvoltage, overload, and short-circuit protection. For me, a quiet fan is also a big plus because it makes my printing setup much more pleasant.
Compatibility Matters Most
One of the biggest mistakes I try to avoid is buying a power supply that does not fit my Ender 3 properly. I always verify the mounting style, connector type, and output rating before I purchase anything. Some Ender 3 printers use a 24V system, while older setups may differ, so I never assume all power supplies are the same. I also make sure the replacement is designed for 3D printers or is a trusted equivalent that can handle continuous use.
Power Output and Performance
I pay close attention to wattage because my Ender 3 needs enough power to heat the bed and hotend consistently. If the power supply is underpowered, I may notice slow heating or unstable performance. I usually look for a supply with enough headroom so it is not running at its limit all the time. In my experience, having a little extra capacity helps the printer stay more stable during long jobs.
Safety Features I Never Ignore
Safety is one of my top priorities. I always prefer a power supply that includes protections against overheating, overload, and short circuits. A well-designed unit gives me more confidence, especially when I leave a print running for hours. I also like to choose brands with a solid reputation, because I feel better knowing the power supply has been tested and trusted by other users.
Noise and Cooling
The fan noise from a power supply can be surprisingly annoying, especially if my printer is in a bedroom or office. That is why I look for a quiet fan or a model known for good thermal management. A power supply that stays cool without sounding like it is working too hard makes my printing experience much better. If I can get reliable cooling and low noise together, that is usually the option I prefer.
Original vs. Replacement Units
I usually decide between an original replacement and a third-party upgrade based on my budget and needs. If I want a simple, worry-free swap, I lean toward an original or OEM-style replacement. If I am looking for better efficiency, quieter operation, or more durability, I may consider a higher-end aftermarket option. Either way, I make sure the seller has clear specifications and good customer feedback.
My Final Buying Advice
If I were buying an Ender 3 power supply today, I would choose one that is fully compatible, properly rated, and built with safety in mind. I would not focus only on price, because a cheap power supply can create bigger problems later. For me, the best choice is the one that gives stable power, runs quietly, and keeps my printer safe during every print.
Final Thoughts
In my experience, the Ender 3 power supply is a small but crucial part of keeping the printer reliable and safe. I’ve found that choosing a quality replacement and making sure it’s installed correctly can make a big difference in performance and peace of mind. My main takeaway is that a dependable power supply helps the Ender 3 run more consistently, so it’s worth paying attention to this component.
Author Profile
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Claire Bennett is the writer behind natachasteven.com, a product review blog shaped by her eye for everyday details. Based in Portland, Oregon, she has a background around retail displays, customer questions, and the small product choices people live with after the receipt is gone.
Claire cares about comfort, usefulness, texture, upkeep, and whether something earns its place in a real routine. Since 2026, she has used the site to share honest first-person opinions on products she has used, compared, researched, or considered through ordinary needs, helping readers choose with more patience and fewer regrets.
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