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Dongguan Lanjin Optoelectronics Co., Ltd. established in 2005,  a professional manufacturer in producing light emitting diode, LED digital display, SMD LED , through-hole LED and LED PCB assembly service.  Covering 2,500 square meters factory plant, with modern purification constant termperature and humidity anti-static production workshop.

Our company has passed ISO9001:2015 international Quality management system certification, and now applying for ISO14001 Environmental management system certification. With 18 years development, we achieved 2 national invention patents, 12 practical new-type patents, 2 software invention patents, all products comply with the EU RoHS standard.

Lanjin has absorbed the advanced manufacturing technology of Japan, Korea and Western Europe. With a high starting point, high quality market positioning, developed high temperature resistance & long life LED. Widely used in communication equipment, swithching power supply, decorative lighting, multi-speaker, DVD and other electronics.

Lanjin always addict to the principle of “ Quality and customer first”, provide customized services according to customer’s demand. Your inquiry is welcomed , solve your question is our mission. LED light the world, Lanjin lights your life!