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MEAN WELL LRS-150-12 150W 12V 12.5 Amp Enclosed Switchable Power Supply

4.4 4.4 out of 5 stars 184 ratings
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Purchase options and add-ons

Brand MEAN WELL
Power Source AC
Current Rating 12.5 Amps
Specification Met CE
Item Weight 0.01 Ounces

About this item

  • Primary output voltage (vdc): 12
  • Output current (a): 12.5
  • Maximum output power (w): 150
  • Family: lrs-150
  • Input voltage (vac): 85 to 132, 170 to 264

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 2.46 x 2.01 x 1.1 inches; 0.01 ounces
  • Item model number ‏ : ‎ LRS-150-12
  • Date First Available ‏ : ‎ June 10, 2016
  • Manufacturer ‏ : ‎ MEAN WELL
  • ASIN ‏ : ‎ B00M8TBJLK
  • Customer Reviews:
    4.4 4.4 out of 5 stars 184 ratings

Product Description

150W 12V 12.5a single output switchable power supply 12 Volts 12.5 Amps features AC input range selectable by a switch withstand 300 VAC surge input for 5 seconds no load power consumption miniature size and 1U low profile high operating temperature, up to 70°c protections: short circuit/overload/over voltage/over temperature cooling by free air convection compliance to IEC/EN 60335-1 (PD3) and IEC/EN 61558-1, 2-16 for household appliances operating Altitude up to 5000 meters withstand 5G vibration Test high efficiency, long life and high reliability LED indicator for power on 100 percent full load burn-in Test 3 year warranty applications industrial automation machinery industrial control system mechanical and electrical equipment electronic instruments, equipment or apparatus household appliances related products lrs-150-15 (15V 10a, 150W) lrs-150-24 (24V 6.5a, 156W) lrs-150-36 (36V 4.3a, 154W) lrs-150-48 (48V 3.3a, 158W) lrs-150f Series (150 watt, full range input enclosed switching power supply) lrs-200 Series (200 watt, enclosed switchable single output power supply) lrs-350 Series (350 watt, enclosed switchable single output power supply) detailed specifications: primary output voltage (VDC): 12 output current (a): 12.5 maximum output power (W): 150 family: lrs-150 input voltage (VAC): 85 to 132, 170 to 264 input frequency: 47 to 63 maximum input current (a): 2.8 output connector Type: screw terminal block number of outputs: 1 product Type: AC to DC power supply efficiency ( percent ): 87.5 minimum isolation voltage: 3750V operating temperature-min (CEL): -30 (more.).

From the manufacturer

About Us

Founded in 1982, MEAN WELL is one of the world's few manufacturers dedicated to standard power supply products.

MEAN WELL has been working as a "reliable partner" with customers, suppliers, contractors, and employees to build long lasting mutual trust relationships based on the spirit of "good intentions."

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Customer reviews

4.4 out of 5 stars
184 global ratings

Customers say

Customers are happy with the performance, quality and value of the power supply. They mention that it works great, is robust and provides a stable power source. They appreciate the adjustability and good voltage regulation. That said, some complain about the noise it makes and issues with output voltage.

AI-generated from the text of customer reviews

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PerformanceQualityValueAdjustabilityTemperatureNoiseOutput voltage
13 customers mention "Performance"11 positive2 negative

Customers are satisfied with the performance of the transformer. They say it works great, is well made, and delivers as expected. Some customers also mention that the product has good characteristics and powers their LEDs just fine.

"Using with WLED controller and a single strand of lights. Works great!" Read more

"No issues or problems with this power supply. Needed it to run an external cooling fan when an AC circuit turned on. Adjustable and inexpensive...." Read more

"Unit works great, only thing is if it don't work this unit came from a country that uses 230 VAC as a primary power not 115 VAC so move red switch..." Read more

"This power supply is well made and delivers as expected. I am very satisfied with its performance. So..." Read more

8 customers mention "Quality"8 positive0 negative

Customers are satisfied with the quality of the power supply. They mention that it is well-made, robust, and provides a stable power source for their 3D printer. It maintains a constant voltage at 10 amps and stays cool. Some say that the 3 amp rating is achievable.

"Well built - I had a look inside in the process of isolating the AC-input terminals...." Read more

"Puts out a constant 10 amps and stays cool" Read more

"This power supply is well made and delivers as expected. I am very satisfied with its performance. So..." Read more

"...It is ruggedly built and the 3 amp rating is achievable, no exaggeration on that number...." Read more

6 customers mention "Value"6 positive0 negative

Customers appreciate the value of the transformer. They say it's a good value for the price.

"...But I'm still pleased with it - it's a nice little supply at a great price." Read more

"...Adjustable and inexpensive. Note: I didnt scope this to see how much ripple it has. Its running a DC fan so I'm not to concerned about it." Read more

"...Pretty good value, what you expect from Mean Well supplies." Read more

"Great valve for the price." Read more

3 customers mention "Adjustability"3 positive0 negative

Customers like the adjustability of the transformer. They mention that the voltage can be adjusted over a small range, it regulates nicely, and that it has good voltage regulation from low to full load.

"...Regulates nicely, at least a 60% load doesn't perturb the output voltage more than 0.1V if that...." Read more

"...Adjustable and inexpensive. Note: I didnt scope this to see how much ripple it has. Its running a DC fan so I'm not to concerned about it." Read more

"Good voltage regulation from low to full load. The voltage can be adjusted over a small range. Not a lot of switching noise. Good connections...." Read more

3 customers mention "Temperature"3 positive0 negative

Customers are satisfied with the temperature of the transformer. They mention that it runs cool at room temperature and produces no heat.

"Puts out a constant 10 amps and stays cool" Read more

"...application pulls 2 amps continuous duty (24/7) and this supply loafs along staying cool. I have this supply in multiple similar projects." Read more

"Runs cool at room temperature. No heat at all. Perfect smooth voltage to power audio amp." Read more

3 customers mention "Noise"0 positive3 negative

Customers are dissatisfied with the noise produced by the transformer. They mention that it emits a high pitched buzzing.

"...The second is possibly just this module - it 'buzzes' - I think it's the transformer resonating...." Read more

"...I was surprised when I wired it up the supply emitted a high pitched bussing that I could hear from across the room...." Read more

"High pitched noise..." Read more

3 customers mention "Output voltage"0 positive3 negative

Customers are dissatisfied with the output voltage of the transformer. They mention that it doesn't produce any DC output.

"No output voltage. Bad out of the box. What happened to quality control." Read more

"...One day just didn't turn on anymore. No DC output...." Read more

"I bought this and finally got to power it up and it doesn’t have any output voltage." Read more

Excellent Value - nice compact 12V Supply
4 out of 5 stars
Excellent Value - nice compact 12V Supply
I bought this as a 12V driver for a number of Echo Dots mounted in-wall throughout my homeAt 1.25A per Dot , that is only 6.25A (max) for 5 Dots, so plenty of overhead in this nice Unit.Overall I'm pretty pleased - it has a nice form factor and dual +/- outputs; I do appreciate the LED that shows when it is powered.There are a couple of minor things that could be improved:The first is the lack of a cover strip for the Terminals - the 120V terminals are exposed and particularly the Line terminal is at the very corner where you would screw mount it. I'd really like to see a cover strip that clips over the exposed terminals, just for additional safety.The second is possibly just this module - it 'buzzes' - I think it's the transformer resonating. I'm not too worried about it as it goes inside a wall (behind a removable panel) but still, should mention it.But I'm still pleased with it - it's a nice little supply at a great price.
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Top reviews from the United States

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Reuben
5.0 out of 5 stars Full trust in MeanWell
Reviewed in the United States on November 1, 2019
Verified Purchase
I made the mistake of buying brick power supplies for my studio light project (LED strips), they are junk as don't hold voltage at 80% of the rated max load. (12v down to 10.5v!). At just a few more dollars and a little bit more DIY the Mean Well is so much better. With this one I am pulling 7amps at 12v with a rock solid 12v meter reading. The frame does get hot to the touch, burning fingers hot! But knowing Mean Well's quality I am not concerned about the hot MOSFETs (pending I keep the PSU in open air.) However, I am still going to install a 50mm or 60mm fan in my project for 100% peace of mind. Seriously, unless you need 100% turn key and going to use at max 50% of power rating, always go with an authentic Mean Well.
One person found this helpful
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j t axline
5.0 out of 5 stars Good quality power supply
Reviewed in the United States on November 15, 2020
Verified Purchase
Well built - I had a look inside in the process of isolating the AC-input terminals.
Regulates nicely, at least a 60% load doesn't perturb the output voltage more than 0.1V if that.

But like many of its cousins, AC input is on an exposed barrier strip right next to the outputs. I've had some of these that provide a modicum of protection via a hinged plastic lid, but these do not. Five stars anyway because I don't give much safety credit to that lid. Of course you can use them the 'right way' inside a sealed box (remembering to deal with the thermal consequences); I prefer to isolate those terminals and add a solder a power cord to the connections internally.
2 people found this helpful
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Ian Mazursky
5.0 out of 5 stars Great PSU
Reviewed in the United States on March 22, 2022
Verified Purchase
Using this to replace a 30 year old Lamdba supply.
Surprisingly the specs are the same for ripple and noise, though the efficiency is better.

The supply is easy to install and adjust. I can highly recommend Mean Well supplies.
One person found this helpful
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Zaneman007
5.0 out of 5 stars Maintains constant voltage at 10 amps
Reviewed in the United States on March 14, 2023
Verified Purchase
Puts out a constant 10 amps and stays cool
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Erlin
1.0 out of 5 stars El articulo no funciona.
Reviewed in the United States on April 30, 2024
Verified Purchase
El articulo no funciona.
Desde mi ubicación, es mas costoso devolver el equipo que comprar otro.
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Alex
5.0 out of 5 stars Robust and powerful little supply.
Reviewed in the United States on October 25, 2021
Verified Purchase
I was surprised by how compact the unit was, but its powerful enough to handle sudden spikes and high in-rush current on inductive loads without cutting out. I shouldn't be surprised considering its from a reputable brand like Mean Well.
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Brandon
4.0 out of 5 stars Good product, inaccurate dimensions
Reviewed in the United States on August 26, 2023
Verified Purchase
I’m a fan of MeanWell. I’ve had good results with their products in the past and I like that they’re UL Listed. Gives some peace of mind that it won’t burn my house down. However, the dimensions listed are not even close to accurate. The actual dimensions are 6 1/4” long, 3 13/16” wide and 1 3/16” tall. Hope that helps someone.
3 people found this helpful
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Matt
5.0 out of 5 stars Powers my LEDs just fine
Reviewed in the United States on October 6, 2022
Verified Purchase
Using with WLED controller and a single strand of lights. Works great!
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Top reviews from other countries

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Mech Eng Techs
5.0 out of 5 stars Excellent Customer Service for great power supply!
Reviewed in Canada on March 31, 2023
Verified Purchase
I have ordered multiple Mean Well supplies in the past and never had a complaint. However, this time the box was labeled correctly (LRS-150-12) but the manufacturer put the wrong supply in the box (LRS-150-24). I contacted the seller and explained the issue with the labels and they corrected the problem immediately. The proper supply was delivered to me the next day! I can't say enough of how great the customer service was!
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Tarakeswara Rao
5.0 out of 5 stars Wortable
Reviewed in India on October 26, 2021
Verified Purchase
Very good
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Marthita.
5.0 out of 5 stars Muy buen producto
Reviewed in Mexico on October 18, 2018
Verified Purchase
Excelente para tiras de leds
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Alpine
5.0 out of 5 stars Excellent product.
Reviewed in Canada on January 10, 2021
Verified Purchase
Powering two digital 100 watt amplifiers for a small home made home theatre speaker.
Excellent quality power supply with high quality internal components. There are some electronic supply shops in my city that use and sell them because of their quality and reliability.
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FrequentBuyer
1.0 out of 5 stars Picture shown is Misleading, its a 48 V / 150 W supply with Dual output port.
Reviewed in India on September 27, 2018
Verified Purchase
Actual model 5v 3A has only one port for supply out and is 1/3 of the size shown in the picture.
Those who think it has got 2 outputs will be disappointed when it arrives , with only one output port, if they desired to have 2 ports for output as in the wrongly posted picture of another model.
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FrequentBuyer
1.0 out of 5 stars Picture shown is Misleading, its a 48 V / 150 W supply with Dual output port.
Reviewed in India on September 27, 2018
Actual model 5v 3A has only one port for supply out and is 1/3 of the size shown in the picture.
Those who think it has got 2 outputs will be disappointed when it arrives , with only one output port, if they desired to have 2 ports for output as in the wrongly posted picture of another model.
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7 people found this helpful
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