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What factory documents should I request before starting negotiations?
Request company, product, CE (LVD/EMC), quality, OEM/ODM, MOQ, delivery, payment, shipping, and after-sales records before negotiating........
What procurement strategy best protects against future UV lamp supply disruptions?
Use 1 pc sample validation, 7-day stock orders, 15–30-day OEM/ODM planning, and express, air, sea, or DDP shipping to reduce disruption risk........
What should I know about upgrading from single-wavelength to dual-wavelength lamps?
Upgrade based on adhesive compatibility, lamp-head design, working position, spot size, and clamp-mounted or floor-standing installation........
What acceptance criteria should I set for a UV lamp sample?
Approve a UV LED Floor Lamp sample only after curing, position stability, structure, configuration, color, spot size, and inspection match........