THE LONGYU BLOG

Sourcing guides for importers and project buyers.

Guides for importers, distributors and project buyers who source smart switches and furniture from China. Written to answer the question that comes before the quotation: how to choose, specify and check what you are buying.

  • 04 field guides
  • Specification-first
  • Quality checks
  • OEM & ODM
Living room interior furnished with OEM furniture and smart lighting control
SOURCING NOTESWritten for the question before the quoteSpecification · compliance · quality
04Published guides
No fluffPractical sourcing
OEM + ODMProject context
2026Editorial library

LATEST GUIDES

Read before you request the quote

Specification, compliance, connectivity and supplier selection, written for the decisions that happen before production.

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