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48 V 2.1 A, 100 W power supply or 100-watt 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: 100-watt power supply (130 W vs. 77); Test current: 100-watt power supply (11 A vs. 1.7); Ripple: 48 V 2.1 A, 100 W power supply (50 mV vs. 70); Temperature rise: 48 V 2.1 A, 100 W power supply (64 °C vs. 98).

Model48 V 2.1 A, 100 W power supply48 V 2.1 A, 100 W power supply2026Read review →100-watt power supply100-watt power supply2025Read review →
Voltage, V4812
Current, A2.18.3
Power, W100100
In test, W77130
Test current, A1.711
Ripple, mV5070
Protection, A1.711.5
Temperature rise, °C6498
Review conclusionWith reservationsRecommended

Only in one review: Under load 11.92 V (100-watt power supply); Efficiency 82 % (100-watt power supply).

48 V 2.1 A, 100 W power supply: Well built, cool-running, and low-ripple, but protection limits output to about 77 W.

100-watt power supply: A good supply: it handled 11 A at 230 V, with normal temperatures and an output filter.

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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