Best 3D Printer Power Supplies for Stable Power (2026)
Updated How we research
Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W DC Power Supply for 3D Printer, LED Strip
Mean Well LRS-350-24 power supply 2 Pack, 24V 14.6A 350W DC units for 3D printers and LED strips.
Mean Well LRS-350-24 24V 350W 14.6A Enclosed Switching Power Supply w/ Terminal Cover, Brackets
Mean Well LRS-350-24 24V 350W 14.6A enclosed switching power supply with a terminal cover and brackets.
Voltage, wattage headroom, and safety certification are the essentials. Match the voltage to your printer, usually 24V, and choose wattage with margin above the combined draw of the heated bed, hotend, motors, and fans so the supply is not maxed out. Look at efficiency and quality of the cooling fan, since a strained or noisy supply runs hot and dies early. Certifications and built-in over-current and over-temperature protection matter for a device left running unattended. These guides suit anyone replacing a failing supply, upgrading to a larger heated bed, or building a printer from parts. Large-format and enclosure users need the most wattage headroom for bed heating. A practical tip: size the supply about 20 percent above your peak draw so it runs cool and lasts, rather than picking the exact minimum. Buy a reputable, properly certified unit and wire the mains connections carefully, since a cheap or miswired supply is a genuine fire risk on an unattended machine.
The short version
We compared 7 picks. Our scores range from 7.2 to 8.8 out of 10.
- Best overall:Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W DC Power Supply for 3D Printer, LED Strip. Highest overall score in this guide at 8.8/10.
- Also great value:Mean Well LRS-350-24 24V 350W 14.6A Enclosed Switching Power Supply w/ Terminal Cover, Brackets. Value score of 8/10, overall 8.8/10.
- Solid build:Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6A Single Output. Build and materials score of 9/10, overall 8.6/10.
- Feature-rich:Mean Well LRS-350-24 DC Switching Power Supply, 24V 14.6A 350W. Features score of 8/10, overall 8.6/10.
Scores are our editorial assessment, not customer ratings. How we score
- 1.Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W DC Power Supply for 3D Printer, LED Strip8.8/10See on AmazonCheck price
- 2.Mean Well LRS-350-24 24V 350W 14.6A Enclosed Switching Power Supply w/ Terminal Cover, Brackets8.8/10See on AmazonCheck price
- 3.Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6A Single Output8.6/10See on AmazonCheck price
- 4.Mean Well LRS-350-24 DC Switching Power Supply, 24V 14.6A 350W8.6/10See on AmazonCheck price
- 5.3D Printing Power Supply LRS-350-24 Meanwell 24V/14.6A 350W for Sovol Ender-3 Pro/Ender-58.4/10See on AmazonCheck price
- 6.Mean Well LRS-350-24 350W 24V 14.6A Power Supply for 3D Printer, LED Strip, CCTV8.2/10See on AmazonCheck price
- 7.Mean Well LRS-150-24 Switching Power Supply, Single Output, 24V, 6.5A, 156W, 6.26" L x 3.82" W x 1.18" H7.2/10See on AmazonCheck price
#1Mean Well LRS-350-24 power supply 2 Pack, 24V 14.6A 350W DC units for 3D printers and LED strips.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 9/10
- + Mean Well is a trusted power supply brand for printer builds
- + 2 Pack supports two printers or a printer plus LED lighting
- + 24V 350W output suits heated beds on common desktop printers
- - Mains wiring on open terminals needs electrical caution
- - No power cord or switch included with the bare units
#2Mean Well LRS-350-24 24V 350W 14.6A enclosed switching power supply with a terminal cover and brackets.
Fit for the job 9/10 · Features and specs 9/10 · Build and materials 9/10 · Value 8/10
- + Terminal cover protects against accidental contact with mains wiring
- + Mounting brackets simplify fitting inside frames and enclosures
- + Enclosed switching design runs quietly with low heat
- - Brackets may not match every printer frame's bolt spacing
- - Still requires correct AC wiring and grounding by the user
#3Mean Well LRS-350-24 AC/DC switching power supply rated 350.4W at 24V and 14.6A single output.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10
- + 350.4W single output powers a printer's bed, hotend and board
- + Genuine Mean Well quality supports long unattended prints
- + 24V output matches most modern Creality and Voron electronics
- - Bare unit, so a separate cord, fuse and switch are needed
- - Built-in fan can be noisy under high load in quiet rooms
#4Mean Well LRS-350-24 DC switching power supply at 24V 14.6A and 350W, a common upgrade for DIY printer builds.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10
- + Widely used spec means plenty of wiring guides and mounts online
- + 350W headroom handles larger beds than many stock supplies
- + Reliable protection features common to the Mean Well LRS line
- - Same model as several other listings, so buy on price and seller
- - Terminal screws must be torqued properly to avoid loose connections
#5Meanwell LRS-350-24 3D printing power supply at 24V/14.6A and 350W, listed for Sovol, Ender-3 Pro and Ender-5.
Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10
- + Listed fit for Sovol, Ender-3 Pro and Ender-5 simplifies replacement
- + Quieter, more reliable alternative to generic stock supplies
- + 350W capacity leaves headroom for accessory upgrades
- - Case shape may differ from stock units, affecting mounting holes
- - Reseller packaging may lack the original manufacturer paperwork
#6Mean Well LRS-350-24 350W 24V 14.6A power supply listed for 3D printers, LED strips and CCTV systems.
Fit for the job 8/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10
- + Multi-use listing shows it suits LEDs and cameras as well as printers
- + 24V 14.6A output supports a printer plus enclosure lighting
- + Compact low-profile case fits under many printer bases
- - Add your own mounting bracket and terminal cover for safety
- - Mains terminals are exposed without an added cover
#7Mean Well LRS-150-24 enclosed 24V 6.5A 156W supply with a slim 1U profile. A smaller fit for compact printers or add-on loads such as LED strips and accessories.
Fit for the job 7/10 · Features and specs 6/10 · Build and materials 8/10 · Value 8/10
- + Genuine Mean Well unit with a 24V, 6.5A, 156W output for smaller 24V printer builds and accessory loads.
- + Slim 1U low-profile body at 6.26 x 3.82 x 1.18 inches is easy to tuck into a tight electronics bay.
- + Switchable AC input range, 300Vac surge withstand and operation up to 70 degrees C are listed.
- - 156W is far below the 350W LRS-350-24 units, so it will not run a large heated-bed printer on its own.
- - The listing has few details beyond basic electrical specs, with no mounting or cable guidance.
Before you buy: trade-offs we flagged
No pick is perfect. These are the main compromises we noted for the top products in this guide, so you can check they will not matter for you.
- Mains wiring on open terminals needs electrical caution (Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W...)
- Brackets may not match every printer frame's bolt spacing (Mean Well LRS-350-24 24V 350W 14.6A Enclosed...)
- Bare unit, so a separate cord, fuse and switch are needed (Mean Well LRS-350-24 AC/DC Switching Power...)
- Same model as several other listings, so buy on price and seller (Mean Well LRS-350-24 DC Switching Power...)
- Case shape may differ from stock units, affecting mounting holes (3D Printing Power Supply LRS-350-24 Meanwell...)
- Add your own mounting bracket and terminal cover for safety (Mean Well LRS-350-24 350W 24V 14.6A Power...)
Frequently asked questions
›What is the best choice among 3d printer power supplies for stable power (2026)?
Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W DC Power Supply for 3D Printer, LED Strip is our top overall pick. Mean Well LRS-350-24 power supply 2 Pack, 24V 14.6A 350W DC units for 3D printers and LED strips. It earns our score of 8.8/10, based on fit for the job, features, build and value.
›What is a good budget option?
Mean Well LRS-350-24 24V 350W 14.6A Enclosed Switching Power Supply w/ Terminal Cover, Brackets is the strongest low-cost pick in this guide. Mean Well LRS-350-24 24V 350W 14.6A enclosed switching power supply with a terminal cover and brackets.
›How much should I expect to spend?
Picks in this guide span See on Amazon price bands (roughly: $ = under $30, $$ = $30 to $100, $$$ = over $100). We never display exact prices because they change constantly, so the buttons above always show Amazon's current price.
›How were these products chosen?
We shortlist products that fit the job this guide solves and compare their published specifications, such as size, capacity, materials and what is included. Each pick gets an editorial score out of 10 for fit, features, build and value, and we write the pros and cons from those details. Our score is not an Amazon customer rating. We earn a commission if you buy through our links, which never affects the ranking.
Filament Print Lab independently selects every product; we may earn a commission from links above.
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