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Case Study: Turn Signal Lamp Supply for an agricultural cooperative in Southern Africa

Source:Case / Time:2026-09-18

Turn Signal Lamp for An agricultural cooperative in Southern Africa

An agricultural cooperative came to us with a turn signal lamp programme for Southern Africa. 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

  • Packing that arrived crushed at the port
  • Reorders that did not match the approved sample
  • A specification nobody had written down

Turn Signal Lamp case study

What was specified

PartTurn Signal Lamp
ClientAn agricultural cooperative
MarketSouthern Africa
Volume2,000 pieces across 4 specifications
Base materialBronze
Sampling rounds4
Delivery window8 weeks from PO to ex-factory
ComplianceRoHS

How it was resolved

  1. The specification was rebuilt around Bronze 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

  • 2,000 pieces delivered inside the 8-week window.
  • Unit cost held within 1.5% of the original quotation.
  • Inspection-related rejection stayed under 1.5%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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