Mean Well LRS-100-12 Switching Power Supply, Single Output, 12V, 8.5A, 102W, 5.08" L x 3.82" W x 1.18" H

Ac input range selectable by a switch

About this item

  • Ac input range selectable by a switch
  • Withstand 300Vac surge input for 5 second
  • Protections: short circuit / overload / over voltage / over temperature
  • Cooling by free air convection
Category: PC PartsInternal Power SuppliesRanked #99 of 616 in PC Parts
9.6Our score
Our verdict

Ac input range selectable by a switch

Ranked #99 in PC Parts · 4 things we like

Quick answer The Mean Well LRS-100-12 Switching Power Supply scores 9.6/10 with us. Amazon owners rate it 4.8 out of 5 across 93 reviews, above the 4.5 average of the 82 internal power supplies we track. It was listed at $19.91 on Amazon when we last checked in September 2026.

Mean Well LRS-100-12 Switching Power Supply, Single Output, 12V, 8.5A, 102W, 5.08" L x 3.82" W x 1.18" H.

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Product information

2 specifications
Product Dimensions‎3.82 x 5.08 x 1.18 inches
Item Weight‎11.7 ounces

Pros & cons

What we like
  • Ac input range selectable by a switch
  • Withstand 300Vac surge input for 5 second
  • Protections: short circuit / overload / over voltage / over temperature
  • Cooling by free air convection
What could be better

    Mean Well LRS-100-12 Switching Power Supply: questions & answers

    Is the Mean Well LRS-100-12 Switching Power Supply worth buying?

    Yes, it is one of the stronger picks in its group. We score the Mean Well LRS-100-12 Switching Power Supply 9.6 out of 10. Amazon owners rate it 4.8 out of 5 across 93 reviews, above the 4.5 average of the 82 internal power supplies we track.

    How much does the Mean Well LRS-100-12 Switching Power Supply cost?

    It was listed at $19.91 on Amazon when we last checked in September 2026. That is cheaper than the $82.99 median for internal power supplies in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.

    What are good alternatives to the Mean Well LRS-100-12 Switching Power Supply?

    Similar, well-rated internal power supplies in our catalog: Mean Well EDR-120-24 Single Output DIN Rail (9.6/10, 4.8 stars from 471 owners); MEAN WELL LRS-350-24 350.4W 24V 14.6 Amp Single (9.2/10, 4.6 stars from 1,068 owners); MEAN WELL Ultra Slim Step-Shape 1SU DIN Rail (9.0/10, 4.5 stars from 88 owners).

    Customer reviews

    All reviews on Amazon
    4.893 global ratings
    5 star90%
    4 star10%
    3 star0%
    2 star0%
    1 star0%

    Breakdown from the 10 most helpful reviews we imported.

    Q
    Quyen N.
    Verified purchaseJune 1, 2024
    🌟🌟🌟🌟🌟 5-Star Review: Reliable Power Solution for Camera Systems

    The MeanWell LRS-100-12 Switching Power Supply has been an absolute lifesaver in fixing the power supply issues with my camera power boxes. With its reliable performance, stable output, and compact design, it has proven to be the perfect solution for powering my camera system without any glitches or interruptions.Stable and Efficient Power Output:The MeanWell LRS-100-12 delivers a stable 12V output with a robust current of 8.5A, providing more than enough power to support my camera system's requirements. Its efficient switching technology ensures minimal power loss, resulting in reliable and c

    O
    outfieldpanoramic
    Verified purchaseApril 9, 2024
    Excellent Power Supply

    I was using a regular brick power supply for an ESP32 project and was experiencing strange grounding issues. I bought this MeanWell and now my project is flawless. High quality, silent, all around excellent product. Will definitely be buying only these from now on.

    J
    Jake
    Verified purchaseFebruary 5, 2021
    Reliable, powerful, value.

    Great value, great build quality, runs great, doesn't even get warm on a 6A load. Only problem is that it does not come with a cover for the terminals.

    A
    artdecolv
    Verified purchaseOctober 23, 2022
    A great price and good quality

    I thought this was a great deal for such a quality power supply.

    S
    STEVEN KOVARIK
    Verified purchaseDecember 15, 2024
    Mean Well is the best

    Have been using Mean Well power supplies for years for lighting. This one has been working for several months without issue.

    I
    Ian Mazursky
    Verified purchaseFebruary 23, 2023
    Great power supply

    I am a huge fan of all of the mean well power supplies.They are reliable and well made. I haven't had one fail yet.I can definitely recommend them.

    M
    M.
    Verified purchaseNovember 17, 2024
    Works, proper certifications.

    Will get the job done, only real complaint is that the power factor is atrocious. If your mains circuit is tight spare some money for the PFC version.

    S
    stuff
    Verified purchaseJune 10, 2025
    Proper supply

    Output was spot on with adjustment. used it to repair a radio that had the AC primary failed the DC bat source worked fine added this to the DC side Radio lived and once again makes noise.

    Customer reviews are shown as published on Amazon and are not written by Do Best Deal.