Kestar Electronic Co., Ltd established in 1984 as one of the largest manufacturer specializing in developing and producing full series metal oxide varistor and various surge protective device, which can provide good sulotion against over-voltage, transient current and lightning.Our products are designed and made basically according to the standard of APCOS so our products are reliable and excellent. Kestar was assessed ISO9001:2000 Quality Management System and ISO14001:2004 Environment Management System. Our products are approval the international safety standard such as UL, CE, VDE, CSA etc. All our products can meet ROHS directive and be lead-free. After more than 20 years' development, we have sold our products to many countries all over the world and gained good reputation.