Found in 2006, Shenzhen Techwin Lightning Technologies Co., Ltd is a professional and high-tech enterprise engaged in R& D of surge protective device, which is a leading provider of lightning solutions in China. Our products are fully complied with the latest international and domestic standards and have over 10 technical patents. CE, ROHS, TUV, UL, ISO, etc certificates have been passed through already. Our innovative products- SPD for AC/DC power, signal, RF, Photovoltaic widely apply in telecom, power, railway, intelligent transportation, CCTV and solar project.