48 V 2.1 A, 100 W power supply or 24 V 100 W transformer

In brief: Based on review measurements: In test: 24 V 100 W transformer (100 W vs. 77); Test current: 24 V 100 W transformer (2 A vs. 1.7); Temperature rise: 24 V 100 W transformer (55 °C vs. 64).

Model	48 V 2.1 A, 100 W power supply2026Read review →	24 V 100 W transformer2016Read review →
Voltage, V	48	24
Current, A	2.1	4
Power, W	100	100
In test, W	77	100
Test current, A	1.7	2
Temperature rise, °C	64	55
Review conclusion	With reservations	Recommended

Only in one review: Ripple 50 mV (48 V 2.1 A, 100 W power supply); Protection 1.7 A (48 V 2.1 A, 100 W power supply); Price 13 $ (24 V 100 W transformer).

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

24 V 100 W transformer: The transformer works normally and reaches at most 52–55°C at full power.

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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