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Comparison · Power supplies

36 W desktop power supply, 12 V 3 A or 36 W 3 A adapter

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: Temperature rise: 36 W 3 A adapter (130 °C vs. 138).

Model36 W desktop power supply, 12 V 3 A36 W desktop power supply, 12 V 3 A2026Read review →36 W 3 A adapter36 W 3 A adapter2026Read review →
Voltage, V1212
Current, A33
Power, W3636
Temperature rise, °C138130
Review conclusionWith reservationsWith reservations

Only in one review: In test 30 W (36 W 3 A adapter); Ripple 400 mV (36 W 3 A adapter); Efficiency 84 % (36 W 3 A adapter); No load 0.5 W (36 W desktop power supply, 12 V 3 A).

36 W desktop power supply, 12 V 3 A: It works for low-power, undemanding loads, but delivers less than rated, has noticeable ripple, and raises safety concerns.

36 W 3 A adapter: Actual maximum power is about 30 W, with 20–25 W sustainable; ripple is moderate.

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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