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Comparison · Power supplies

QS-48-12 or Meanwell LRS-50-12

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: Test current: Meanwell LRS-50-12 (6 A vs. 3.7); Ripple: Meanwell LRS-50-12 (100 mV vs. 300); Temperature rise: Meanwell LRS-50-12 (85.5 °C vs. 115).

ModelQS-48-12QS-48-122026Read review →Meanwell LRS-50-12Meanwell LRS-50-122023Read review →
Current, A44.2
Power, W4850
Test current, A3.76
Ripple, mV300100
Efficiency, %8585
Protection, A3.56.5
Temperature rise, °C11585.5
Review conclusionNot recommendedRecommended

Only in one review: Voltage 12 V (QS-48-12); No load 0.55 W (QS-48-12).

QS-48-12: The transformer overheats; in reality this is closer to a 36 W model than a 48 W one.

Meanwell LRS-50-12: A quality PSU handled sustained overload; the author notes its 16 V capacitors and unusual 100 Hz ripple.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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