GB/T 19148.3-2009
ActiveTypes and dimensions of lampholders - Part 3: Prefocus lampholders
灯座的型式和尺寸 第3部分：预聚焦式灯座
Application Summary AI generated
GB/T 19148.3-2009 specifies the types, dimensions, and interchangeability requirements for prefocus lampholders used in lighting fixtures. It applies to lampholders designed to hold prefocus lamp caps, ensuring precise optical alignment in projection, stage, and automotive lighting applications. The standard is critical for manufacturers and quality testing to guarantee consistent lamp positioning and electrical safety in professional and industrial lighting systems.
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