Comparison · Power supplies

12 V 75 W power supply or 24 V 72 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: Ripple: 24 V 72 W power supply (80 mV vs. 170); Efficiency: 24 V 72 W power supply (92.5 % vs. 85.5); Temperature rise: 12 V 75 W power supply (68 °C vs. 107).

Model	12 V 75 W power supply2025Read review →	24 V 72 W power supply2025Read review →
Voltage, V	12	24
Power, W	75	72
Ripple, mV	170	80
Efficiency, %	85.5	92.5
Temperature rise, °C	68	107
Review conclusion	Not recommended	Recommended

Only in one review: Current 3 A (24 V 72 W power supply); In test 100 W (24 V 72 W power supply); Test current 7.5 A (12 V 75 W power supply); No load 0.1 W (12 V 75 W power supply); Protection 8 A (12 V 75 W power supply); Price 7 $ (24 V 72 W power supply).

12 V 75 W power supply: It is the same 60 W supply: temperature is too high at the claimed 75 W, and protection is set much too high.

24 V 72 W power supply: It reached almost 92.5% efficiency and ran steadily at 4 A; the author especially likes this version.

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.