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Comparison · Power supplies

12 V 75 W power supply or HCA-72

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 75 W power supply (7.5 A vs. 6); Ripple: 12 V 75 W power supply (170 mV vs. 380); Efficiency: 12 V 75 W power supply (85.5 % vs. 83.5); Temperature rise: 12 V 75 W power supply (68 °C vs. 111).

Model12 V 75 W power supply12 V 75 W power supply2025Read review →HCA-72HCA-722025Read review →
Power, W7572
Test current, A7.56
Ripple, mV170380
Efficiency, %85.583.5
Protection, A86
Temperature rise, °C68111
Review conclusionNot recommendedWith reservations

Only in one review: Voltage 12 V (12 V 75 W power supply); Current 6 A (HCA-72); No load 0.1 W (12 V 75 W power supply).

12 V 75 W power supply: It is the same 60 W supply: temperature is too high at the claimed 75 W, and protection is set much too high.

HCA-72: Ripple is tolerable, but electrical safety is poor and sustained in-case output is no more than 60 W.

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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