In brief: Based on review measurements: Test current: RK8009 (9 A vs. 5); Ripple: RK8009 (50 mV vs. 80); Efficiency: RK8009 (98.9 % vs. 97.4).
Model RK8009 Riden · 2026 Read review → WZ5005 2020 Read review → Test current, A 9 5 Ripple, mV 50 80 Efficiency, % 98.9 97.4 Review conclusion Recommended With reservations
Only in one review: Voltage 80 V (RK8009); Current 9 A (RK8009); Power 720 W (RK8009); Under load 81 V (RK8009); Temperature rise 54 °C (WZ5005).
RK8009: The converter showed low ripple, high efficiency and good thermal performance; its main drawback is limited input-voltage headroom.
WZ5005: Good efficiency and low ripple, but the converter is underdeveloped, with dangerous voltage spikes and other issues.
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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RK8009Riden · 2026Read review →
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