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Comparison · Power supplies

48 V 2.5 A power supply or RPS-120-27

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: 48 V 2.5 A power supply (150 W vs. 135); Test current: RPS-120-27 (5.5 A vs. 3.03); Ripple: 48 V 2.5 A power supply (20 mV vs. 75); Efficiency: RPS-120-27 (90 % vs. 88.8).

Model48 V 2.5 A power supply48 V 2.5 A power supply100MHz · 2018Read review →RPS-120-27RPS-120-27Mean Well · 2018Read review →
Voltage, V4827
Current, A2.54.5
Power, W125121.5
In test, W150135
Test current, A3.035.5
Ripple, mV2075
Efficiency, %88.890
Review conclusionRecommendedWith reservations

Only in one review: Temperature rise 100 °C (48 V 2.5 A power supply); Weight 230 g (48 V 2.5 A power supply); Price 4.69 $ (48 V 2.5 A power supply).

48 V 2.5 A power supply: This inexpensive power supply is well built, delivers its rated power steadily, and the author recommends it.

RPS-120-27: Well built and handles load tests, but it buzzes noticeably, has high ripple, and is difficult to repair.

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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