80 PLUS Bronze Efficiency

80 PLUS Bronze is the entry-level quality-tier PSU certification requiring ≥82% efficiency at 20% load, ≥85% efficiency at 50% load, and ≥82% efficiency at 100% load (tested at 115 V). It represents the minimum recommended efficiency standard for a complete custom PC build. Bronze-rated PSUs reduce wasted heat (and electricity cost) compared to uncertified OEM units. Corsair CV and CX Series, EVGA B-Series, and budget Be Quiet! System Power units typically carry Bronze certification.