Comparison · Power supplies

24 V 100 W transformer or 24 V 100 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: 24 V 100 W power supply (120 W vs. 100); Test current: 24 V 100 W power supply (5 A vs. 2); Temperature rise: 24 V 100 W transformer (55 °C vs. 84).

Model	24 V 100 W transformer2016Read review →	24 V 100 W power supply2015Read review →
Voltage, V	24	24
Current, A	4	3
Power, W	100	100
In test, W	100	120
Test current, A	2	5
Temperature rise, °C	55	84
Review conclusion	Recommended	Recommended

Only in one review: Under load 23.8 V (24 V 100 W power supply); Ripple 800 mV (24 V 100 W power supply); Price 13 $ (24 V 100 W transformer).

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

24 V 100 W power supply: It runs reliably at 100 W and handled nearly 120 W, though the author notes safety and component-margin concerns.

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.