# Best 3D Printer Power Supplies for Stable Power (2026) Source: https://filamentprintlab.com/best/power-supplies Updated: 2026-09-15 Publisher: Filament Print Lab. Our score is an editorial rating out of 10 (fit 35%, features 25%, build 20%, value 20%), not a customer rating. Method: https://filamentprintlab.com/how-we-research#our-score 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. ## Picks ### 1. Mean Well LRS-350-24 (2 Pack) 24V 14.6A 350W DC Power Supply for 3D Printer, LED Strip Our score: 8.8/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 9/10) Mean Well LRS-350-24 power supply 2 Pack, 24V 14.6A 350W DC units for 3D printers and LED strips. Pros: - 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 Cons: - Mains wiring on open terminals needs electrical caution - No power cord or switch included with the bare units Details: https://filamentprintlab.com/product/B085G6Q2ZV ### 2. Mean Well LRS-350-24 24V 350W 14.6A Enclosed Switching Power Supply w/ Terminal Cover, Brackets Our score: 8.8/10 (Fit for the job 9/10 · Features and specs 9/10 · Build and materials 9/10 · Value 8/10) Mean Well LRS-350-24 24V 350W 14.6A enclosed switching power supply with a terminal cover and brackets. Pros: - 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 Cons: - Brackets may not match every printer frame's bolt spacing - Still requires correct AC wiring and grounding by the user Details: https://filamentprintlab.com/product/B09WR38GQK ### 3. Mean Well LRS-350-24 AC/DC Switching Power Supply 350.4W 24V 14.6A Single Output Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) Mean Well LRS-350-24 AC/DC switching power supply rated 350.4W at 24V and 14.6A single output. Pros: - 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 Cons: - Bare unit, so a separate cord, fuse and switch are needed - Built-in fan can be noisy under high load in quiet rooms Details: https://filamentprintlab.com/product/B07SQLJG5L ### 4. Mean Well LRS-350-24 DC Switching Power Supply, 24V 14.6A 350W Our score: 8.6/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) Mean Well LRS-350-24 DC switching power supply at 24V 14.6A and 350W, a common upgrade for DIY printer builds. Pros: - 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 Cons: - Same model as several other listings, so buy on price and seller - Terminal screws must be torqued properly to avoid loose connections Details: https://filamentprintlab.com/product/B07VRK86SP ### 5. 3D Printing Power Supply LRS-350-24 Meanwell 24V/14.6A 350W for Sovol Ender-3 Pro/Ender-5 Our score: 8.4/10 (Fit for the job 9/10 · Features and specs 8/10 · Build and materials 8/10 · Value 8/10) Meanwell LRS-350-24 3D printing power supply at 24V/14.6A and 350W, listed for Sovol, Ender-3 Pro and Ender-5. Pros: - 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 Cons: - Case shape may differ from stock units, affecting mounting holes - Reseller packaging may lack the original manufacturer paperwork Details: https://filamentprintlab.com/product/B0CVX4YK96 ### 6. Mean Well LRS-350-24 350W 24V 14.6A Power Supply for 3D Printer, LED Strip, CCTV Our score: 8.2/10 (Fit for the job 8/10 · Features and specs 8/10 · Build and materials 9/10 · Value 8/10) Mean Well LRS-350-24 350W 24V 14.6A power supply listed for 3D printers, LED strips and CCTV systems. Pros: - 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 Cons: - Add your own mounting bracket and terminal cover for safety - Mains terminals are exposed without an added cover Details: https://filamentprintlab.com/product/B0CN1JVD4Y ### 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" H Our score: 7.2/10 (Fit for the job 7/10 · Features and specs 6/10 · Build and materials 8/10 · Value 8/10) Mean 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. Pros: - 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. Cons: - 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. Details: https://filamentprintlab.com/product/B018RE4CWW As an Amazon Associate I earn from qualifying purchases.