Shanghai LERDN Lightning Protection Co., Ltd. is committed to R&D and manufacturing of Surge Protective Device (SPD), with complete series in power system, control signal system, computer network system, video signal system, etc. assuring the global customers of 5-year warranty, providing reliable surge protection solutions for industries, such as telecommunication, railway, education, petrochemical, etc.

LERDN attach importance to the construction of intellectual property by R&D in self-reliance and in possession of several national patents. Meanwhile, LERDN strictly follow the ISO9001 and ISO14001 to upgrade the product quality and service, to consciously reduce and constantly improve the activity regarding environment pollution and security threat, so as to seek harmonious intergrowth with environment.

In possession of CE certificate, LERDN wish to cooperate with the companies from all over the world to share our high-quality products and professional technologies by establishment of agent relationship. LERDN will assist you to explore the market by providing product handbook and complete solutions in various language.

Our products including: lightning protection module to power system, lightning protection module to control signal, lightning protection module to computer network, lightning protection to CCTV, lightning protection to computer room, 2-Camera-lightning protection module, 3-Camera-lightning protection module, lightning protection module to video signal, unitized lightning protection box, free assembled lightning protection box, lightning counter, lightning protection socket, lightning rod, lightning arrester, etc.