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UPS efficiency: double-conversion vs bypass-ECO / active high-efficiency mode

94-97% → 98-99%observed

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeBypass-style ECO (inverter on standby, short break on transfer) and active high-efficiency modes (inverter energized, conditioning held, uninterrupted transfer) are different products that both reach ~98-99%. Contemporary double-conversion designs reach ~97%, so the recoverable delta is product- and load-dependent — take it from measured efficiency curves and acceptance tests, not from the mode name.
As of2025
SourceData Center Dynamics · Efficiency comparison; best-in-class 96% VFI versus 99% Eco Mode, and typical 94% VFI versus 98% Eco Mode
Reviewchecking…review by 2026-09-09 · standard cadence
Recorded changeslast 2026-09-04 · 3 revisions tracked
Claim idups-efficiency-double-conversion-vs-eco-dynamic

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