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Voltage, otherwise known as electrical potential difference (denoted ∆V and measured in volts) is the difference in electric potential between two points (adapted from Wikipedia). Voltage can be constant (DC) or varying (AC).

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Help wiring multiple different colored LED lights

I am not 100% sure how many I need to get an appropriate voltage to power all of the LEDs. That is the first thing I could use a hand on. I also have a handful of 200 ohm resistors. …