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Comparison · Power supplies

12 V 50 W power supply or Sanmim GPA50A-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: Ripple: Sanmim GPA50A-12 (55 mV vs. 800); Temperature rise: 12 V 50 W power supply (61 °C vs. 128).

Model12 V 50 W power supply12 V 50 W power supply2025Read review →Sanmim GPA50A-12Sanmim GPA50A-122023Read review →
Power, W5050
Ripple, mV80055
Temperature rise, °C61128
Review conclusionWith reservationsRecommended

Only in one review: Voltage 12 V (Sanmim GPA50A-12); Current 4.2 A (Sanmim GPA50A-12); In test 96 W (Sanmim GPA50A-12); Efficiency 85 % (12 V 50 W power supply); No load 0.2 W (12 V 50 W power supply).

12 V 50 W power supply: A decent unit, but ripple is high; its protection is set for about 60–65 W.

Sanmim GPA50A-12: The author is very pleased with its performance and build, but says the overheat protection is too slow to act.

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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