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I believe the word you're searching for here is "clickbait."

Controlling LED strips is not a boring project and it's a wonderful entry into the hobby since it often works with very safe voltages and is happy with cheap components.

But this article is clickbait, and it's probably the most detail-free article imaginable on the subject.

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> works with very safe voltage

True for constant voltage, resistor limited current ones only. With constant current LED drivers, the voltage is approx 3V per LED. So it adds nicely to unsafe levels, albeit DC.

Another note is the power supplies can be quite unsafe too - esp. the cheap off-brand ones.

Panels and strips using more than 24V are extremely rare, with 12V being common and 5V existing for the hobbyist crowd. I've never seen a 24V rig for hobbyist uses (although some Ikea strips run there).

You don't wire them in serial anyways. In general if you care about blocks of LEDs at all you don't wire them in serial.

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