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Comparison · Power supplies

12 V 3 A desktop power supply or QS-36-12

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: 12 V 3 A desktop power supply (3.5 A vs. 2.9); Temperature rise: 12 V 3 A desktop power supply (91 °C vs. 95).

Model12 V 3 A desktop power supply12 V 3 A desktop power supply2026Read review →QS-36-12QS-36-122026Read review →
Voltage, V1212
Current, A33
Power, W3636
Test current, A3.52.9
Protection, A3.52.9
Temperature rise, °C9195
Review conclusionRecommendedWith reservations

Only in one review: In test 35 W (QS-36-12); Ripple 350 mV (QS-36-12); Efficiency 85 % (QS-36-12); No load 0.7 W (QS-36-12).

12 V 3 A desktop power supply: Nearly identical to the adapter version: temperatures are normal and protection trips around 3.4–3.5 A.

QS-36-12: Decent overall, but its real power is about 30 W, with substantial no-load 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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