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Comparison · Power supplies

100 W, 12 V, 8.3 A power supply in metal case or 12 V 100 W 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: Test current: 12 V 100 W power supply (9 A vs. 8.3); Ripple: 100 W, 12 V, 8.3 A power supply in metal case (100 mV vs. 400); Efficiency: 12 V 100 W power supply (89 % vs. 84); Temperature rise: 12 V 100 W power supply (128 °C vs. 136).

Model100 W, 12 V, 8.3 A power supply in metal case100 W, 12 V, 8.3 A power supply in metal case2026Read review →12 V 100 W power supply12 V 100 W power supply2026Read review →
Voltage, V1212
Current, A8.38.33
Power, W100100
Test current, A8.39
Ripple, mV100400
Efficiency, %8489
Protection, A11.59.3
Temperature rise, °C136128
Review conclusionWith reservationsWith reservations

Only in one review: No load 0.5 W (100 W, 12 V, 8.3 A power supply in metal case).

100 W, 12 V, 8.3 A power supply in metal case: A budget model with sensible cost-cutting, but with concerns about heat, the case, and low-frequency ripple.

12 V 100 W power supply: Efficiency is about 89%, but the output rectifier transistor overheats under heavy load.

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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