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Comparison · Power supplies

120-watt power supply or SVEN SB-550 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: Test current: 120-watt power supply (7.3 A vs. 3).

Model120-watt power supply120-watt power supply2025Read review →SVEN SB-550 power supplySVEN SB-550 power supply2023Read review →
Test current, A7.33
Under load, V11.9725
Protection, A7.63.4
Review conclusionWith reservationsRecommended

Only in one review: Voltage 12 V (120-watt power supply); Current 10 A (120-watt power supply); Power 120 W (120-watt power supply); Ripple 400 mV (120-watt power supply); Temperature rise 84 °C (120-watt power supply).

120-watt power supply: Decent as an 80–85 W supply at 230 V, but it does not deliver the claimed 120 W and has higher ripple.

SVEN SB-550 power supply: The supply was repaired with an NCP1251 in place of the original controller and passed extended tests up to 2.5 A.

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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