We are GLsun Science based in Guilin, China. We are member of TradeKey.com since May, 2013. Our business is related to Telecommunications industry and we specifically deal in optical switch, CWDM, free space isolator, coupler. Please find our product details below:Optical switchSUN-FSW-1×4 Optical Switch is an ideal component for OADM OXC system monitoring and protection. With compact package, it can be easy to integrate into a high density optical communication system.Optical switchThank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.