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Switching Spark Gap(SSG) has the voltage range from 110V to 800V, It has so many advantages such as complete varieties, good stability and long lifetime.This product can be mainly used for ignition purposes on the HID ballast,ect. Gas discharge tube is of high insulation resistance,small capacitance,fast respondence,long life and non-radioactive substance.It is widely used for over-voltage protection of telecom and other electronics,as well as lightning protection. Ningbo Zhengmao Electronics Co.,Ltd is located in the south of Ningbo Zhejiang Province, China,with convenient transportation.Our company specializes in researching and developing,manufacturing the Switching Spark Gaps,Gas Discharge Tube and surge arresters. The company covers an area of more than 6,000 square meters, with advanced,excellent and top-tech facilities and testing equipments. Switching Spark Gap(SSG) has the voltage range from 75V to 800V, It has so many advantages such as complete varieties, good stability and long lifetime.This product can be mainly used for ignition purposes on the HID ballast,ect. Gas discharge tube is of high insulation resistance,small capacitance,fast respondence,long life and non-radioactive substance.It is widely used for over-voltage protection of telecom and other electronics,as well as lightning protection. Our company has got the ISO9001-2000QMS(Quality Management System).The products all satisfy the ITU-T K.12 Recommendation Standard and China technical standard GB/T18802.311-2007/IEC61643-311:2001,YD/T694 and REA PE-80 America Standard,etc.Gas Discharge Tube has got the TüV certification of German and SGS certification, satisfy the ROHS standard.