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Comparison · Power supplies

12 V 72 W power supply 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: 12 V 72 W power supply (9 A vs. 8.6); Ripple: SANMIM GPT70A-12 (60 mV vs. 120); Efficiency: 12 V 72 W power supply (88 % vs. 87); Temperature rise: SANMIM GPT70A-12 (100 °C vs. 135).

Model12 V 72 W power supply12 V 72 W power supply2025Read review →SANMIM GPT70A-12SANMIM GPT70A-122019Read review →
Voltage, V1212
Power, W7270
Test current, A98.6
Ripple, mV12060
Efficiency, %8887
Protection, A108.6
Temperature rise, °C135100
Review conclusionRecommendedRecommended

Only in one review: Current 6 A (12 V 72 W power supply); In test 120 W (12 V 72 W power supply); No load 1 W (SANMIM GPT70A-12); Price 7 $ (12 V 72 W power supply).

12 V 72 W power supply: Well built, but overheats during prolonged use without airflow above about 4.5 A.

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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