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Comparison · Power supplies

MeanWell EPP-500-54 or 12 Volt 50 Amp power supply

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: 12 Volt 50 Amp power supply (595 W vs. 550); Test current: 12 Volt 50 Amp power supply (50 A vs. 11.3); Ripple: MeanWell EPP-500-54 (150 mV vs. 250); Efficiency: MeanWell EPP-500-54 (95 % vs. 88); Temperature rise: 12 Volt 50 Amp power supply (107 °C vs. 115).

ModelMeanWell EPP-500-54MeanWell EPP-500-542021Read review →12 Volt 50 Amp power supply12 Volt 50 Amp power supply2017Read review →
In test, W550595
Test current, A11.350
Ripple, mV150250
Efficiency, %9588
Temperature rise, °C115107
Review conclusionRecommendedWith reservations

Only in one review: Voltage 54 V (MeanWell EPP-500-54); Current 50 A (12 Volt 50 Amp power supply); Power 500 W (MeanWell EPP-500-54); Under load 11.91 V (12 Volt 50 Amp power supply); No load 1.5 W (MeanWell EPP-500-54); Protection 11.3 A (MeanWell EPP-500-54); Price 27 $ (12 Volt 50 Amp power supply).

MeanWell EPP-500-54: The compact PSU showed high efficiency and acceptable ripple, but the transformer gets noticeably hot under heavy load.

12 Volt 50 Amp power supply: It delivered 595 W in a one-hour test, but sustained power is likely only 450–480 W, with some components overloaded.

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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