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12V 4 Pin Led Metal Push Button Switch Momentary Power Switch Waterproof 50% OFF 12V 4 Pin Led Metal Push Button Switch Momentary Power Switch Waterproof US$5.99 US$11.99 View It
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Top Positive Review for %s on Banggood, Shop best %s with lowest price on Banggood. Browse most helpful positive review for %s before you buy., rc toys, fun sports, fashion, popular electronics
Roger 28/09/2017
I advice using a serial resistor, to avoid burning the led. Calculation is simple. If it's a blue led (± 3V - 20 mA) and you power it with 12V, than Resistor = (12-3) / 0,02 = 450 Ω Select 470 Ω
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