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Comparison · Power supplies

CTG-300W-12V or MeanWell SP-320-5

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: MeanWell SP-320-5 (65 A vs. 21.5); Temperature rise: MeanWell SP-320-5 (75 °C vs. 105).

ModelCTG-300W-12VCTG-300W-12V2025Read review →MeanWell SP-320-5MeanWell SP-320-52020Read review →
Current, A2555
Power, W300275
Test current, A21.565
Under load, V12.2164.982
Temperature rise, °C10575
Review conclusionWith reservationsRecommended

Only in one review: Voltage 12 V (CTG-300W-12V); Ripple 300 mV (CTG-300W-12V); Efficiency 80 % (MeanWell SP-320-5); Power factor 0.97 (MeanWell SP-320-5); No load 8 W (MeanWell SP-320-5).

CTG-300W-12V: It is effectively suited to about 230–250 W; the small input capacitor and higher ripple detract from it.

MeanWell SP-320-5: The used unit performed excellently, including overload testing at 65 A and a low-ripple result.

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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