Comparison · Power supplies

Track power supply, 48 V 2.1 A, 100 W or HCA-100L

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: HCA-100L (8 A vs. 2.5); Temperature rise: Track power supply, 48 V 2.1 A, 100 W (58 °C vs. 112).

Model	Track power supply, 48 V 2.1 A, 100 W2026Read review →	HCA-100L2025Read review →
Current, A	2.1	8.3
Power, W	100	100
Test current, A	2.5	8
Protection, A	3.5	8.3
Temperature rise, °C	58	112
Review conclusion	With reservations	Recommended

Only in one review: Voltage 48 V (Track power supply, 48 V 2.1 A, 100 W); Ripple 800 mV (Track power supply, 48 V 2.1 A, 100 W); Efficiency 87 % (Track power supply, 48 V 2.1 A, 100 W); No load 0.2 W (Track power supply, 48 V 2.1 A, 100 W).

Track power supply, 48 V 2.1 A, 100 W: A compact supply with good power and moderate heating, but its protection-trip current is much too high.

HCA-100L: Much like its counterpart, it has high efficiency and stability, but practical sustained output is about 70–80 W.

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.