- Sinko System Co.,Ltd
- Induction Voltage Regulator,Induction Voltage Regulator,Electronic Ballast for T8 Fluorescent Lamp,Power measuring instrument (Digital multi meter) ,Electricity reduction applicance,Uninterruptible power supply (UPS) ,Waste heat recovery system.
- Address:101-403,SK Ventium, #522, Dangjeong-dong ,Gunpo-si
- Doo Young Electronics Co.,Ltd.
- DY-H.I.D.ballast,EL Lamp,DY-T4 compact fluorescent ballast-programmed start,DY-H.I.D.ballast(High wattage),DY-T5/T5HO fluorescent ballast,DY-Twin tube fluorescent ballast,DY-T8 fluorescent ballast.
- Address:3rd. Nambu Bldg.,Yeoksam-dong ,Gangnam-gu
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