Luma-Hub | Lighting products, development and material solutions

Quality and failure analysis

Review the service and its applications. Scope, deliverables and fees are agreed following discussion.

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Product development / Technical improvement and cost reduction
Technical improvement and cost reduction

Quality defect and failure analysis

Separate symptoms from causes, then verify whether corrective actions work.

Professional service · Acceptance against agreed deliverables
Luminaire quality defect analysis example: sample analysis, solder joint checks, retained parts and corrective-action review preparation
Luminaire quality defect analysis example
  • 01 Sample analysis
  • 02 Solder joint checks
  • 03 Component retention samples
  • 04 Preparation for corrective-action review
What you receive

Understand the deliverables before choosing how to work together

The following deliverables can be agreed. The project brief defines their depth, quantity and verification responsibilities.

Deliverable / 01

Defect definition and traceability table

Record symptoms, samples, batches, revisions and operating conditions.

How this deliverable is checked

Evidence can be traced to a specific sample and source.

Deliverable / 02

Cause hypotheses and investigation

Develop candidate causes and a staged elimination plan.

How this deliverable is checked

Root-cause conclusions match the strength of the evidence.

Deliverable / 03

Corrective actions and impacts

Describe design, process or inspection actions and their effects.

How this deliverable is checked

Each action has an owner, revision and verification requirement.

Deliverable / 04

Retesting and conclusion records

Compare evidence under the same conditions before and after correction, and identify residual risks.

How this deliverable is checked

Closed, not reproduced and awaiting verification are reported separately.

Start with your current challenge

This is a useful starting point when

Situation 01 A return or pilot defect has occurred, but the parties disagree about its cause
Situation 02 Replacing a component restores operation temporarily, but similar failures recur
Situation 03 Defective samples, batches, firmware revisions and usage conditions are not linked in the records
Service scope and effort

Agree the scope and quotation at the depth you need

What you can engage us to do

Fees depend on model, defect type, sample count and analysis rounds. External tests and costs are listed separately.

Information needed before we begin

Defective samples and records, revisions and batches, operating conditions, manufacturing and inspection documents.

Agreed according to objectives, deliverables and effort
Quoted after the scope is confirmed
Defect analysis and investigation planFailure analysis and corrective-action review

Fees are based on model, defect type, sample quantity, analysis method and follow-up rounds. External destructive analysis or testing is specified in advance.

We confirm workload, service period and both parties' responsibilities before issuing a formal quotation. Samples, site work and third-party services are listed separately where required.

Process and responsibilities

Every step establishes the basis for the next

01Confirm the defect and samples
02Develop and test cause hypotheses
03Define corrective actions
04Retest under comparable conditions and conclude
Engagement boundaries

When evidence is insufficient, root causes remain hypotheses; an issue is not closed merely because it could not be reproduced. Novel technical challenges are scoped under the technical investigation service.

Agree expectations before we begin

Other questions you may have

Can work begin without a defective physical sample?

Records and traceability can be reviewed first to propose an investigation. A root-cause conclusion requiring a sample or test must wait for that evidence.

How is this service accepted?

Conclusions match the strength of the evidence; corrections are verified; unresolved issues and limitations are documented.

What happens if the scope changes or information is incomplete?

We first assess how gaps or changes affect deliverables, timing and fees. They are included only after both parties agree; items outside the original scope are recorded separately.

How should information be shared and kept confidential?

Start with a summary of the product type, objectives and issues. Share detailed information after its intended use, confidentiality requirements, access scope and delivery permissions have been agreed.

Start with a brief summary

Tell us about your objectives and current challenges

Describe your current stage, main objectives and desired deliverables, then we can confirm the suitable scope and next step together.

Use the enquiry page to share a project summary. Detailed information can follow once its use and confidentiality requirements are agreed.