JT/T 939.2-2025Highway LED lighting - Part 2: Highway tunnel LED lighting fixtures (English PDF)

JT/T 939.2-2025 is the English-translated version of 公路LED照明灯具 第2部分：公路隧道LED照明灯具.

JT/T 939.2-2025 — This standard specifies the composition, classification and model, technical requirements, test methods, inspection rules, and requirements for marking, packaging, transportation and storage of light-emitting diode (LED) lighting fixtures for highway tunnels.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

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