| Market and Application Fit | Define the bulb by market, socket, voltage, frequency, indoor or outdoor use, and expected operating hours. | Target country list, application profile, annual forecast, channel mix, installation environment, and warranty policy. | One approved specification for each market and application; no mixed electrical or labeling requirements. | Critical |
| Electrical Compatibility | Use the correct nominal voltage and frequency for each destination; verify operation across the declared input range. | Input voltage range, frequency, power factor, total harmonic distortion, inrush current, and dimmer compatibility. | Passes applicable electrical safety and EMC tests; no flicker, overheating, or nuisance tripping in intended installations. | Critical |
| Energy Performance | Set a lumen-per-watt target appropriate to the bulb category while preserving thermal and optical performance. | Rated wattage, initial lumens, maintained lumens, efficacy, power factor, energy label data, and test conditions. | Measured results remain within the approved tolerance; claims are supported by an independent or accredited laboratory report. | High |
| Photometric Quality | Select correlated color temperature, color rendering, beam angle, and lumen distribution for the intended space. | CCT, color rendering index, chromaticity coordinates, color consistency data, beam angle, and photometric files. | CCT and color rendering meet the product brief; batch variation remains within the agreed color-consistency range. | High |
| Flicker and Stroboscopic Risk | Control temporal light modulation, especially for workplaces, retail spaces, cameras, and rotating equipment. | Flicker percentage, flicker index, modulation frequency, test method, and dimming-condition results. | Results satisfy the buyer’s specified photobiological and temporal-lighting limits at full power and approved dimming levels. | High |
| Thermal Management | Prevent accelerated lumen depreciation and driver failure under the actual ambient-temperature profile. | Ambient-temperature rating, case temperature, thermal test setup, heat-sink design, airflow limits, and enclosed-fixture guidance. | Temperature measurements remain below component limits during continuous operation and enclosed-fixture testing. | Critical |
| Lifetime and Reliability | Use a declared life supported by lumen-maintenance testing rather than relying only on marketing claims. | Lumen-maintenance report, switching-cycle test, accelerated-life data, failure-rate records, and warranty-return history. | Evidence supports the declared life under the defined temperature, duty cycle, and switching conditions. | Critical |
| Regulatory Compliance | Build a destination-specific compliance file covering safety, EMC, energy efficiency, chemical restrictions, and labeling. | Applicable legislation matrix, declarations, test reports, technical file, markings, user instructions, and traceability records. | Every destination has a documented approval route before mass production or shipment. | Critical |
| Material and Environmental Controls | Control restricted substances, packaging materials, recycling information, and end-of-life responsibilities. | Material declarations, restricted-substance test results, packaging composition, recycled-content data, and disposal instructions. | Documentation matches the bill of materials and destination-market environmental obligations. | High |
| Factory Quality System | Require controlled processes for incoming components, assembly, calibration, testing, and nonconforming product. | Quality certificates, process flow, control plan, inspection records, calibration status, corrective-action reports, and audit results. | Critical process controls are documented, repeatable, and verified during an on-site or remote audit. | High |
| Sampling and Pre-Shipment Inspection | Verify quantity, appearance, electrical function, photometric output, packaging, and labeling before release. | Approved inspection level, defect classification, sampling plan, test instruments, inspection checklist, and release record. | No critical defects; major and minor defects remain within the agreed acceptance limits. | High |
| Traceability and Change Control | Ensure component, production-date, batch, and destination traceability throughout the supply chain. | Lot-code format, bill of materials, approved component list, change-notification process, and retention period. | No component, firmware, driver, LED package, or production-site change without written approval and requalification. | High |
| Supply Capacity and Continuity | Match capacity to the launch forecast while protecting against component shortages and seasonal demand changes. | Monthly capacity, lead time, minimum order quantity, component allocation, backup sources, and business-continuity plan. | Capacity covers the approved forecast plus a defined contingency buffer without reducing inspection or test coverage. | High |
| Total Landed Cost | Compare the full cost of ownership rather than unit price alone. | Unit cost, tooling, testing, certification, packaging, freight, duties, inspection, warranty reserve, and expected failure cost. | Business case remains positive after compliance, logistics, quality, and after-sales costs are included. | Medium |
| Warranty and After-Sales Support | Define service responsibilities, claim evidence, replacement procedures, and response times before purchase. | Warranty period, exclusions, return authorization process, failure analysis method, spare-unit policy, and monthly claim reporting. | Responsibility for transport, replacement, investigation, and corrective action is documented in the supply agreement. | High |
| Pilot Launch and Approval Gates | Use staged approval: document review, samples, pilot batch, field validation, and final production release. | Gate checklist, sample results, pilot yield, field feedback, corrective actions, and signed approval records. | Mass production starts only after all critical deviations are closed and the approved golden sample is locked. | Critical |