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Christmas lights PCB, lights blink for a split second and stop, anything visibly wrong with the board? If it's the COB, how could I wire it to just get lights without effects? I can't find what the smt with "406" is and does. : r/AskElectronics
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Amazon.com: Gikfun Electronic LED Flashing Lights Soldering Practice Board PCB DIY Kit EK1874 : Electronics
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