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Case Study: Turn Signal Lamp Supply for an e-commerce seller in the Caribbean

Source:Case / Time:2026-09-18

Turn Signal Lamp for An e-commerce seller in the Caribbean

An e-commerce seller came to us with a turn signal lamp programme for the Caribbean. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • Warranty claims traced back to a single lot
  • A supplier who changed material without saying so
  • Premature wear on the first batch

Turn Signal Lamp case study

What was specified

PartTurn Signal Lamp
ClientAn e-commerce seller
Marketthe Caribbean
Volume10,000 pieces across 4 specifications
Base materialMagnesium Alloy
Sampling rounds4
Delivery window8 weeks from PO to ex-factory
ComplianceCCC

How it was resolved

  1. The specification was rebuilt around Magnesium Alloy and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Turn Signal Lamp production run

Result

  • 10,000 pieces delivered inside the 8-week window.
  • Unit cost held within 2.0% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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