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Comparison · Power supplies

QS-72-12 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: Ripple: QS-72-12 (200 mV vs. 380); Efficiency: QS-72-12 (87 % vs. 83.5); Temperature rise: HCA-72 (111 °C vs. 130).

ModelQS-72-12QS-72-122026Read review →HCA-72HCA-722025Read review →
Current, A66
Power, W7272
Ripple, mV200380
Efficiency, %8783.5
Temperature rise, °C130111
Review conclusionWith reservationsWith reservations

Only in one review: Voltage 12 V (QS-72-12); No load 0.5 W (QS-72-12).

QS-72-12: Relatively decent, but the author says it is effectively the same 60 W supply, not a true 72 W model.

HCA-72: Interference is absent and ripple is tolerable, but the author advises limiting load to 55–60 W because of heat and poor safety.

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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