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Comparison · Power supplies

HCF-18L or GFA20A-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: In test: GFA20A-12 (37 W vs. 18); Ripple: GFA20A-12 (35 mV vs. 300); Temperature rise: GFA20A-12 (70 °C vs. 77).

ModelHCF-18LHCF-18L2025Read review →GFA20A-12GFA20A-12SANMIM · 2019Read review →
Voltage, V1212
Current, A1.51.7
Power, W1820
In test, W1837
Ripple, mV30035
Temperature rise, °C7770
Review conclusionWith reservationsRecommended

Only in one review: Efficiency 84 % (HCF-18L); No load 0.2 W (GFA20A-12); Price 6.5 $ (GFA20A-12).

HCF-18L: Delivers its rated power with acceptable ripple and stability, but has poor electrical safety.

GFA20A-12: The power supply showed ample power headroom, low heat and low ripple; the author recommends it.

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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