A BOM is a claim. Only the chain can verify it.
Between the LED and the finished luminaire sit seven supply layers — packaging, drivers, thermal, optics, finishing, connectors, tooling. Knowing the real capacity, MOQ logic and delivery behaviour of each layer is what makes a bill of materials credible instead of decorative.
What each layer makes, and what it hides.
One row per layer. The third column is the part you cannot Google.
Three verdicts you couldn't make alone.
This is the difference between reading a BOM and reading a BOM with the map in your head.
A BOM you can trust or reject
When a quote lists "international brand driver", we know which series exists, which factory genuinely buys it, and what it costs. The AQC deviation register is powered by this knowledge.
A delivery date you can weigh
A promise of 4 weeks means different things depending on whether the tool is idle or the SMT line is booked for Q4. Layer-level capacity knowledge turns delivery promises into risk assessments.
A substitution you can judge
When a factory proposes changing a capacitor brand or an optics grade, the question is never "is it still a capacitor" — it is whether the substitute sits at the same tier of the chain. We can answer that because we know the tiers.
Where the chain knowledge ends.
Honest limits, because vague ones are how trust dies.
We don't claim to know a secret price list
There is no such thing as the one true component price. What exists is a converged band from competitive quotes — and the discipline to make every deviation explain itself.
Lighting, and lighting's neighbours
We know the lighting chain deeply and its adjacent categories (cable, connectors, emergency systems) well enough to verify. We don't pretend to know consumer electronics or furniture.
Knowledge is verified, not remembered
Layer knowledge ages. Whatever we claim about a supplier today still gets verified at the gates — memory informs the checklist; evidence decides the report.