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Comparison · Power supplies

Sanmim GPA50A-12 or Dual-voltage power supply

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: In test: Sanmim GPA50A-12 (96 W vs. 47); Test current: Sanmim GPA50A-12 (8 A vs. 2.838); Temperature rise: Dual-voltage power supply (84 °C vs. 128).

ModelSanmim GPA50A-12Sanmim GPA50A-122023Read review →Dual-voltage power supplyDual-voltage power supply2015Read review →
In test, W9647
Test current, A82.838
Under load, V11.9514.6
Temperature rise, °C12884
Review conclusionRecommendedWith reservations

Only in one review: Voltage 12 V (Sanmim GPA50A-12); Current 4.2 A (Sanmim GPA50A-12); Power 50 W (Sanmim GPA50A-12); Ripple 55 mV (Sanmim GPA50A-12).

Sanmim GPA50A-12: The PSU substantially exceeded its rated current and showed low ripple; the author recommends buying it.

Dual-voltage power supply: The PSU works, but its output voltages vary greatly; the author notes the missing inductor on the 12 V channel.

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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