| 1 | Dry-Battery Compatibility | Clearly specify AA or AAA alkaline battery support, polarity protection, and battery-compartment capacity. | Different battery sizes affect runtime, weight, availability, and operating cost. | Battery specification sheet, compartment drawings, and sample test results. |
| 2 | LED Performance | Use a documented LED specification with measured output, beam distance, color temperature, and operating modes. | LED type alone does not prove real brightness or usable illumination. | Photometric test report, integrating-sphere data, and runtime curve. |
| 3 | Runtime Transparency | Publish runtime by mode and identify the battery type, test temperature, and cutoff condition. | Runtime varies substantially with battery chemistry, load, temperature, and brightness mode. | Mode-by-mode runtime test records using production samples. |
| 4 | Water Resistance | Select a documented IP rating appropriate to the use case, such as IPX4 for splashing water or higher protection for harsher exposure. | The IP code distinguishes protection against water and solid particles; it is not a general durability guarantee. | IP test report and sealing inspection records for the final housing. |
| 5 | Headband and Ergonomics | Use an adjustable, washable or replaceable strap with balanced weight distribution and a stable tilt mechanism. | Comfort and stability directly affect safety and long-duration use. | Material details, adjustment range, wear testing, and user-fit samples. |
| 6 | Thermal Management | Include heat dissipation through the housing and a controlled brightness step-down when required. | High LED current can increase housing temperature and reduce LED or battery performance. | Temperature test data at maximum mode and thermal design documentation. |
| 7 | Electrical Safety | Provide reverse-polarity protection, short-circuit protection, reliable contacts, and secure battery retention. | These features reduce risks caused by incorrect insertion, vibration, or damaged cells. | Circuit diagram, safety test records, and production-line functional-test procedures. |
| 8 | Compliance Documentation | For applicable markets, verify CE, RoHS, EMC, and photobiological-safety documentation before shipment. | Market-access obligations depend on destination, product design, and applicable regulations. | Valid test reports, declarations, technical files, and product-label artwork. |
| 9 | Quality-Control System | Require incoming-material inspection, in-process checks, final inspection, and traceable batch records. | A documented control process helps maintain consistency across production batches. | Quality manual, inspection checklist, defect classification, and sample inspection report. |
| 10 | Customization and Supply Capability | Confirm tooling support, packaging customization, minimum order quantity, lead time, spare parts, and after-sales response. | Commercial reliability is essential when scaling from samples to repeated production orders. | Written quotation, production schedule, approved sample, packaging proof, and service terms. |