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MYUNGCHUL JANG @UCywOi39bkvl81DEMkd8qn2g@youtube.com

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04:58
#DoubleSwitch #스위치이중 # schematic #이중스위치#alltimerose#회로도
07:05
Turning on AC220V bulbs using relay / 릴레이 이용하여 AC220V 전구 켜기
04:42
Turn on the LED with AC power 220V #교류 전원 220V로 LED 켜기 #LED #AC #diode
10:17
BLUETOOTH CAR /블루투스 차
04:06
LED Light up After Dark/어두워지면 LED 켜짐니다