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Comparison · Power supplies

QS-72-12 or SANMIM GPT70A-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: Test current: SANMIM GPT70A-12 (8.6 A vs. 7); Ripple: SANMIM GPT70A-12 (60 mV vs. 200); No load: QS-72-12 (0.5 W vs. 1); Temperature rise: SANMIM GPT70A-12 (100 °C vs. 130).

ModelQS-72-12QS-72-122026Read review →SANMIM GPT70A-12SANMIM GPT70A-122019Read review →
Voltage, V1212
Power, W7270
Test current, A78.6
Ripple, mV20060
Efficiency, %8787
No load, W0.51
Protection, A8.58.6
Temperature rise, °C130100
Review conclusionWith reservationsRecommended

Only in one review: Current 6 A (QS-72-12); Under load 11.31 V (QS-72-12).

QS-72-12: Fairly decent, but 6 A causes overheating; the author sees about 4.5–5 A as the practical limit.

SANMIM GPT70A-12: A well-built supply with good protection and low ripple, but comparatively low efficiency and higher heat.

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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