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MEAN WELL LRS-350-12 DC Switching Power Supply 12V 29A 350W for CCTV, Computer Project, 3D Printer, LED Strip Light, Router
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | MEAN WELL |
Color | Silver |
Connector Type | Screw Terminal |
Item Dimensions LxWxH | 8.46 x 4.53 x 1.18 inches |
Output Current | 29 Amps |
About this item
- Output Voltage: 12V ; Rated Current & Rated Power: 29A, 348W
- Input Switch Default on 115VAC; Efficiency Level: 85% ;
- Input Voltage Range: 90 ~ 132VAC / 180 ~ 264VAC by Switch;
- Full Protections: Short Circuit / Overload / Over Voltage /Over Temperature. Case temperature>50℃ FAN ON, Case temperature<40℃ FAN OFF;
- Fan only spins when Case Temprature higher than 122℉
Frequently bought together
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Product information
Product Dimensions | 8.46 x 4.53 x 1.18 inches |
---|---|
Item Weight | 1.68 pounds |
Manufacturer | MEAN WELL |
ASIN | B07VTLJS18 |
Item model number | LRS-350-12 |
Customer Reviews |
4.8 out of 5 stars |
Best Sellers Rank | #30,360 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #16 in Lab Power Supplies #30 in Life Science Supplies |
Date First Available | July 29, 2019 |
Warranty & Support
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Product Description
2_Pack Available at $57 (Check SIZE: LRS-350-12:2_PACK)-CONDITION: 100% Brand New -DC VOLTAGE: 12V -CURRENT RANGE: 0~29A -RATED POWER: 348W -INPUT VOLTAGE RANGE: 90 ~ 132VAC / 180 ~ 264VAC by switch 240 ~ 370VDC (switch on 230VAC) -EFFICIENCY: 85% -PROTECTIONS: SHORT CIRCUIT / OVER LOAD / OVER VOLTAGE / OVER TEMPERATURE -WEIGHT:760g -DIMENSION: 215 x 115 x 30 mm -CASE MATERIAL: Metal case / Aluminum base -CERTIFICATE: UL/CB -WORKING TEMPERATURE: -25~70℃CASE temperature>50℃ FAN ON, CASE temperature<40℃ FAN OFF
Compare with similar items
This Item MEAN WELL LRS-350-12 DC Switching Power Supply 12V 29A 350W for CCTV, Computer Project, 3D Printer, LED Strip Light, Router | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | |
Price | $37.95$37.95 | -27% $28.41$28.41 List: $39.00 | -26% $32.41$32.41 List: $43.95 | -5% $31.34$31.34 Typical: $32.99 | -35% $28.65$28.65 List: $43.95 | -24% $30.00$30.00 Typical: $39.56 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Thursday, Apr 4 | — | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Sold By | Kahroba Electronics | GESD Pleasure | Amtools | Angel house11 | power supply mall | Amtools |
output current | 29 amps | 30 amps | — | 29 amps | 14.6 amps | 29 amps |
output voltage | 12 volts | — | — | 12 volts | 24 volts | 12 volts |
output wattage | 350 watts | 360 watts | — | 350 watts | 200 watts | 350 watts |
connector type | Screw Terminal | screw | Screw terminal | — | Screw terminal | — |
model number | LRS-350-12 | 12v 30a | LRS-350-12 | LRS-350-12 | LRS-350-24 | LRS-350 Series/LRS-350-12 |
weight | — | — | 1.2 pounds | — | 1.64 pounds | 1 pounds |
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Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the quality, performance, and adjustable output of the power supply. For example, they mention it's well made, works well, and has adjustable voltage. Some appreciate the value, and appearance of the product. Opinions are mixed on noise.
AI-generated from the text of customer reviews
Customers like the performance of the power supply. They mention that it works well with no drama, has no issues, and works straight out of the box. Some say that the product is high quality and useful. Overall, most are satisfied with the performance and functionality of the product.
"...Nice, slim case, able to fine-tune the voltage, and very clean looking inside. A solid buy.Received the product in a timely manner...." Read more
"...It doesn't always run, so that's good. I might replace it with an AIO case and a larger fan. Great power supply so far." Read more
"...I seems to run pretty cool, the fan hasn't come on yet so I hope it is temperature controlled and will come on if it gets hot but I don't know as..." Read more
"...So, they are quite, in a electrical sense, and work reliably with my home brew 3D printer." Read more
Customers are satisfied with the quality of the power supply. They mention that it is well-made, has a solid output, and is stable under maximum load. The components on the circuit board appear solid and there are no hot spots. The power supply is very stable, quiet, and has fewer hot spots than other cheap brands. Overall, customers are happy with their purchase and recommend it to others.
"...The body is well built, I never heard the fan come on, even after a fair bit of power draw, and the whole thing is utilitarian design, but well built..." Read more
"...TL;DR - The Meanwell power supply (sold by Hybridge) is a solid performer...." Read more
"This power supply has a 12 Volt fan and it is thermostatically controlled for a much quieter operation. Exceeds the factory power supply" Read more
"...Thoughts: It is a place to start, it seems to be assembled with good components, be mindful of the exposed contacts, I will be augmenting the..." Read more
Customers are satisfied with the power supply. They mention that it works well, is quiet, and continues to supply power during power hits. Some say that it's a great power supply for enders and Prusa Mk3s. They also say that the internal fan only kicks on when needed.
"I used this power supply for some Ham radios. It worked well, and seems to power my radio stably...." Read more
"...I might replace it with an AIO case and a larger fan. Great power supply so far." Read more
"...It's working great on a 159W load in cold weather down to 10 F." Read more
"The MeanWell unit is very quiet and only runs the fan when needed. Plus it has UL and CSA certifications according to the label...." Read more
Customers are satisfied with the adjustable output of the system power device. They mention that it is easily adjustable to 13.8 volts, stays at the exact voltage, and is steady and accurate. The unit is solidly made and holds the output voltage very accurately. It regulates well and is input voltage switchable.
"...Either way, the adjustable screw is available in case you need to tweak the voltage...." Read more
"...Nice, slim case, able to fine-tune the voltage, and very clean looking inside. A solid buy.Received the product in a timely manner...." Read more
"...this supply with 6 amps (well below its capacity) the output voltage was rock solid. Testing the unit on the air showed there was no audible hum...." Read more
"...The output voltage is adjustable. Presently using to power “12-volt” LED strips where the output is set at 10.5V so LEDs operate cooler...." Read more
Customers appreciate the value of the system power device. They say it's the best bang for the buck, has quality, and is a good value.
"Pros: Affordable, slim profile, clean output, maybe 10% more efficient than cheaper version...." Read more
"...source but as long as you stay under those parameters they are very economical and very efficient." Read more
"...it was affordable and arrived in decent time and fixed my problem. I am thankful" Read more
"...Great power supply, great value." Read more
Customers like the appearance of the system power device. They mention that it has a slim profile, a nice clean layout, and a utilitarian design. They also describe it as a quality unit in a small space.
"...on, even after a fair bit of power draw, and the whole thing is utilitarian design, but well built...." Read more
"...Nice, slim case, able to fine-tune the voltage, and very clean looking inside. A solid buy.Received the product in a timely manner...." Read more
"Pros: Affordable, slim profile, clean output, maybe 10% more efficient than cheaper version...." Read more
"This is a really great compact 24v Power Supply, I am currently using it with this great little speed controller and so far has worked flawless...." Read more
Customers find the system power device easy to install. They mention that it's thin and easy to mount. Customers also appreciate the instructions to print a new cover for the switch and power connector. Overall, most are happy with the ease of use and functionality of the product.
"...Product was as advertised and install was easy. Components on circuit board appear solid and no hot spots." Read more
"...It came with instructions to print a new cover for the switch and power connector as it's different than the original. It's on Meanwell's website...." Read more
"...Well made and meets specs.The supply is thin and easy to mount.I can definitely recommend it." Read more
"...This replacement bolted in perfect with no modifications needed. Also solved the problem!" Read more
Customers are mixed about the noise of the system power device. Some mention that it's super quiet, with no crazy coil whine or any high pitched noises. However, others say that the fan seems a bit loud and there is a loud electrical whine as the unit warms up.
"...has a 12 Volt fan and it is thermostatically controlled for a much quieter operation. Exceeds the factory power supply" Read more
"It’s quiet compared to the original power supply of the AnkerMake. Fan only comes on when it hits a certain temperature range A+ so far" Read more
"...60mm square, 15 mm thick. There was a mention that the fan seems a bit loud, and I would concur...." Read more
"...Testing the unit on the air showed there was no audible hum. One day I'll throw a oscilloscope on it to 'see' what is really going on...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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The body is well built, I never heard the fan come on, even after a fair bit of power draw, and the whole thing is utilitarian design, but well built. Just be careful with the power lugs being exposed - it's not particularly safe, although the plastic separators makes it take effort to touch them. I put some electrical tape over the top after wiring it up to make it marginally safer.
There's no power switch. I just pulled the power cable from the wall.
Do note that it doesn't come with any cables (no wall cable, nothing), so you're on the hook for wiring it up to wall power, and then whatever connections you want. I bought an unterminated power cable from home depot to plug into the wall, and some various short jumper wires to the connectors I needed.
Even with the extra cables to buy and the limitations, it worked well and was a fair bit cheaper than a "ham radio" power supply.
Standard 3-wire in (ground, neutral, load), and 3 sets of postive (VDC+) and negative (VDC-) connections.
TL;DR - The Meanwell power supply (sold by Hybridge) is a solid performer. Nice, slim case, able to fine-tune the voltage, and very clean looking inside. A solid buy.
Received the product in a timely manner. Boxed nicely, and included mounting feet (which is nice). Picture one reflects that. The unit is input voltage switchable (115v or 230v)
The unit internally has a nice clean layout. I did not look on the underside of the circuit board, only the top (pictured) side.
The fan is removable (if you wish to add another). 60mm square, 15 mm thick. There was a mention that the fan seems a bit loud, and I would concur. Also, trying to determine what triggers the fan to come on. The docs seem to indicate based upon thermal temperature, but it would also appear to be based upon current draw. If I pull 6amps on the unit (out of 15) the power supply doesn't get warm however, the fan will kick on anyhow. It does seem variable in that if I decrease the load, the fan slows down. Fortunately, I have this mounted in a closet so it is not noticeable.
One other mention about the fan. It is an ARX DC Brushless, 12v 0.13a, 15 cfm fan. If you google for that fan, it is sold on here for like $24 - $27 (elsewhere $16 to $18). For a basic fan, seems quite high in price considering the noise it produces.
The power supply has external access to a trim-pot allowing to tweak the desired voltage. I took several voltage measurements of the unit itself (One of the pictures I combined all the differences to). Ultimately, there is a +/- of almost 5v swing.
For a brief, I observed the following:
24.19v - out of the box measurement
20.89v - Adjusted all the way down
29.94v - adjusted all the way up.
Upper-right image on the measurement picture was just me setting it to 24v when I was done measuring.
There are 6 terminals for output (3 for positive(+), 3 for negative(-)). There are three terminals for the main voltage (Neutral, Line, ground). About the only ding I give here is that unlike other power supplies on the market, the Meanwell does not come with that little plastic swing cover to cover over the terminals.
I have a 6 amp load of LED strips, and wanted something that could handle double-that in the future, so I ended up with the 15amp (14.6a technically) power supply (leaving me 20% overhead so not ever fully loaded, which is how you should plan your projects). Final two pictures show's the supply working, and my mounted project :)
All in all, I am happy with the purchase. It does what it is supposed-to.
Reviewed in the United States on October 23, 2020
TL;DR - The Meanwell power supply (sold by Hybridge) is a solid performer. Nice, slim case, able to fine-tune the voltage, and very clean looking inside. A solid buy.
Received the product in a timely manner. Boxed nicely, and included mounting feet (which is nice). Picture one reflects that. The unit is input voltage switchable (115v or 230v)
The unit internally has a nice clean layout. I did not look on the underside of the circuit board, only the top (pictured) side.
The fan is removable (if you wish to add another). 60mm square, 15 mm thick. There was a mention that the fan seems a bit loud, and I would concur. Also, trying to determine what triggers the fan to come on. The docs seem to indicate based upon thermal temperature, but it would also appear to be based upon current draw. If I pull 6amps on the unit (out of 15) the power supply doesn't get warm however, the fan will kick on anyhow. It does seem variable in that if I decrease the load, the fan slows down. Fortunately, I have this mounted in a closet so it is not noticeable.
One other mention about the fan. It is an ARX DC Brushless, 12v 0.13a, 15 cfm fan. If you google for that fan, it is sold on here for like $24 - $27 (elsewhere $16 to $18). For a basic fan, seems quite high in price considering the noise it produces.
The power supply has external access to a trim-pot allowing to tweak the desired voltage. I took several voltage measurements of the unit itself (One of the pictures I combined all the differences to). Ultimately, there is a +/- of almost 5v swing.
For a brief, I observed the following:
24.19v - out of the box measurement
20.89v - Adjusted all the way down
29.94v - adjusted all the way up.
Upper-right image on the measurement picture was just me setting it to 24v when I was done measuring.
There are 6 terminals for output (3 for positive(+), 3 for negative(-)). There are three terminals for the main voltage (Neutral, Line, ground). About the only ding I give here is that unlike other power supplies on the market, the Meanwell does not come with that little plastic swing cover to cover over the terminals.
I have a 6 amp load of LED strips, and wanted something that could handle double-that in the future, so I ended up with the 15amp (14.6a technically) power supply (leaving me 20% overhead so not ever fully loaded, which is how you should plan your projects). Final two pictures show's the supply working, and my mounted project :)
All in all, I am happy with the purchase. It does what it is supposed-to.
The fan turn on and off when needed and is the loudest fan on my printer. It doesn't always run, so that's good. I might replace it with an AIO case and a larger fan. Great power supply so far.
Cons: Slim profile restricts air flow, 2 Watt fan being fed 5 Watts making it scream (real world test, it's loud), No cover for electrical contacts leaving mains connections exposed to accidents.
Thoughts: It is a place to start, it seems to be assembled with good components, be mindful of the exposed contacts, I will be augmenting the original dummy thermal on/off switch with something a bit more intelligent that can throttle the fan properly. If this voids my warrantee, so be it.
The quality is great and it even comes with mounting brackets.
https://www.amazon.com/gp/product/B087QDRWBP/ref=ppx_yo_dt_b_asin_title_o00_s01?ie=UTF8&psc=1