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Comparison · Power supplies

36 W, 12 V 3 A power supply or Sanmim GPA40B

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: Sanmim GPA40B (5.7 A vs. 2.5); Ripple: Sanmim GPA40B (37 mV vs. 600); No load: Sanmim GPA40B (0.3 W vs. 0.5); Temperature rise: Sanmim GPA40B (93 °C vs. 138).

Model36 W, 12 V 3 A power supply36 W, 12 V 3 A power supply2026Read review →Sanmim GPA40BSanmim GPA40B2020Read review →
Voltage, V1212
Current, A33.5
Power, W3640
Test current, A2.55.7
Ripple, mV60037
No load, W0.50.3
Protection, A3.75.7
Temperature rise, °C13893
Review conclusionWith reservationsRecommended

Only in one review: In test 70 W (Sanmim GPA40B); Under load 12.083 V (Sanmim GPA40B); Efficiency 87 % (Sanmim GPA40B).

36 W, 12 V 3 A power supply: Works for low-power, undemanding loads, but the author says he would not buy it himself.

Sanmim GPA40B: It regulates voltage excellently and handles a sustained 150% load, though it costs more than budget models.

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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