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How to Connect Multiple LED's with 9V Battery, Switch in Series Connection | Simple Electric Circuit - YouTube
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Cheap 2Pcs 48x7mm 3W DC 9V LED Chip On Board Bar Light Source Lamp for DIY Table Desk Lighting | Joom
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Αγορά Λαμπτήρες | 2Pcs High Power 10W 20W 30W 50W 100W COB Integrated LED lamp Chip SMD DC 9V 30V 36V For DIY Flood light Spotlight Bulb
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My DIY RGB LED panel powered by 9V battery works but certain colors like blue, white, and purple don't work - Electrical Engineering Stack Exchange
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How to Connect Single LED to 9V Battery with Resistor & ON/OFF Switch | Connection Tutorials - YouTube
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