- Raytron Co., Ltd.
- Infrared remote control receiver,Fiber Optic Transmitter and Receiver,LED-light emitting diode,Photo Detector and Emitters,Green Lighting,LED,OpticalLink,Sensor.
- Address:104-6, Munji-Dong, Yuseong-Gu
- YOUNGWON TECH
- Optical Fiber,Plastic Optical Fiber,Glass Optical Fiber,Lighting,Lighting Display,Lighting plastic arts.
- Address:Unitechvil-416, 1141-2, Baksuk-dong, Ilsandong-gu
- Campnet Co., Ltd.
- RF Reapter,ICS,Digital Optic Repeater,Digital Distribution Repeater,In-Building System,LED Lighting,MR16,PAR30,fluorescent lamp,Digital Fiber Optic Repeater.
- Address:4th Floor, 934-6, Gwanyang-dong, Dongan-gu
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