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Comparison · Power supplies

LS-400W-12V or 12 V 33 A 400 W 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: LS-400W-12V (410 W vs. 120); Ripple: 12 V 33 A 400 W power supply (180 mV vs. 400); Efficiency: LS-400W-12V (92 % vs. 84); Temperature rise: 12 V 33 A 400 W power supply (110 °C vs. 130).

ModelLS-400W-12VLS-400W-12V2025Read review →12 V 33 A 400 W power supply12 V 33 A 400 W power supply2025Read review →
Voltage, V1212
Current, A3333
Power, W400400
In test, W410120
Ripple, mV400180
Efficiency, %9284
Temperature rise, °C130110
Review conclusionWith reservationsWith reservations

LS-400W-12V: The 400 W model delivered 410 W, but ran hot above 32 A and its protection threshold was incorrectly set.

12 V 33 A 400 W power supply: Neatly built, but realistically suited to about 100 W continuous, not the claimed 400 W.

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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