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10 LED String Lights Tree, Dual Voltage 100-240V, 7W AL-4865
Brand: Generic / OEM
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Audited BOM: 8 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The low-quality power supply (ENG-001) is the root cause of premature product failure (RMA-004), evidenced by reports of burning smell and complete shutdown (REV-001, REV-004).
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