| Jacket and diffuser materials | Ask whether the product uses silicone, PVC, or another specified material. Compare stated operating-temperature range, UV and weathering suitability, flexibility, and material consistency for the intended installation. | Material specification or datasheet; sample from the quoted production material; test reports or documented suitability claims for the intended environment. | Material choice can affect flexibility, appearance, heat resistance, and outdoor durability. Performance depends on the formulation and product construction, not just the material name. |
| Electrical and optical specifications | Compare rated voltage, power per metre, LED density, color or CCT options, dimming compatibility, and specified cutting or connection intervals. Check whether figures apply to the exact quoted model. | Model-specific datasheet, wiring diagram, sample measurements, and a written specification matching the quotation. | Clear, model-specific specifications help prevent mismatched power supplies, uneven brightness, and incorrect installation assumptions. |
| Water and dust protection | Compare the declared IP rating for the complete product and intended use. Check how end caps, joints, connectors, and cable entries are sealed. | Test report identifying the tested product configuration and test method, such as the applicable parts of IEC 60529. Confirm whether accessories and assembled connections were included. | An IP claim applies to a tested configuration; a rating for a strip alone may not establish the protection of an installation with field-made joints or unsealed ends. |
| Electrical safety and compliance | Check which safety and regulatory requirements apply in the destination market, and whether the documentation covers the exact product, power supply, and configuration being purchased. | Relevant test reports, declarations, component details, and traceable model identifiers. Verify report scope and validity with the issuing organization where appropriate. | A certificate or report for a different model or component may not demonstrate compliance for the finished product being supplied. |
| Production inspection and reliability checks | Ask what is checked during production, such as visual appearance, electrical operation, dimensions, and packaging. Compare any burn-in or aging procedure by its stated duration and acceptance criteria. | Inspection checklist, sample quality records, defect-handling process, and clearly defined test duration and pass/fail criteria. | A documented process is more useful than an unsupported claim of “100% testing.” Burn-in practices and durations are not universal benchmarks, so compare the actual procedure. |
| Customization and installation support | Compare available colors, lengths, profiles, connectors, control options, and drawing or sample approval steps. Ask for the minimum bend radius and cutting rules for the specific model. | Written design specification, approved drawing or sample, model-specific installation guide, and confirmation of lead time and order quantity requirements. | Customization is useful only when design limits, electrical details, and installation requirements are documented before production. |
| Warranty and after-sales process | Compare warranty term, covered failures, exclusions, evidence required for a claim, and the process for replacement or technical support. | Written warranty terms and a documented contact and claims procedure that identifies the covered product models. | Specific written terms make it easier to assess support expectations than a general warranty statement. |