In brief: Based on review measurements: In test: RK8009 (720 W vs. 648); Efficiency: RK8009 (98.9 % vs. 98.8).
Model RK8009 Riden · 2026 Read review → RK6012 Riden · 2026 Read review → Power, W 720 720 In test, W 720 648 Efficiency, % 98.9 98.8 Review conclusion Recommended Recommended
Only in one review: Voltage 80 V (RK8009); Current 9 A (RK8009); Ripple 100 mV (RK6012); Temperature rise 77 °C (RK6012).
RK8009: The converter showed low ripple, high efficiency, and little heating, but has limited headroom for minimum voltage drop.
RK6012: A compact converter delivering up to 720 W with high efficiency, but noticeable voltage sag under load.
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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