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Cosmo Electronics Corporation has become world’s leading manufacturers in the field of Photo Couplers and Relay.

In beginning, we were dedicated the innovation of developing lead-edge products of RELAY .
In terms of new technologies launched to market day by day, we had decided to involve the field of OPTO electronics device for two product lines, Photo Couper and SSR-MOSFET output. Those two product lines could be fulfill demands came from market for Power supply 、Battery Management System、Industrial、Security and Automobile related.