A common unspoken rule in the industry is quietly swapping to cheaper LEDs or driver chips to save costs, causing product performance to drop with each batch. This is a massive concern for fleet managers who expect the 100th unit to perform exactly like the approved sample.
The Industry Secret
After your initial sample is approved, some suppliers quietly replace components to improve their margins. The LED brand changes. The driver IC gets downgraded. The lens material shifts from virgin PC to regrind. Each change is minor on its own—but the cumulative effect is a product that no longer matches what you certified.
The LIYI Approach
We have a strict internal "Design Change Management Procedure." Any substitution involving core components must undergo rigorous re-testing and evaluation:
Locked Bill of Materials (BOM): We maintain a locked BOM for all certified products. Critical components—LEDs, drivers, lenses—cannot be substituted without a formal process.
Engineering Change Notice (ECN): If a component is discontinued by the manufacturer, we do not simply buy a replacement off the shelf. We initiate a formal ECN, evaluate the impact, and re-test before mass production.
Client Notification: If a change is unavoidable, we notify you in advance and provide new test data for your approval before the batch ships.
What This Means for Your Fleet
Your 100th unit performs identically to your first sample. No surprises. No quality drift. No compliance gaps caused by unauthorized component swaps.
Our Honest Commitment
If we must change a supplier, we will notify you in advance and provide new test data. Buy with peace of mind; use with confidence. Your product will always match the specification you approved.
FAQ
Q: How do I know the components in my order match the approved sample?
A: Every production batch is linked to a specific BOM revision. We can provide the component list for your order upon request.
Q: What happens if a component is discontinued mid-order?
A: We will immediately notify you, assess alternatives, re-test, and obtain your written approval before proceeding with any substitution.
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