Wiring led's?

[skierxx5556 10+ year member]

Hey guys I just bought a bunch of led's and I have a few quesions. What side is pos and neg? What side does the resistor go on?

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[Vincent9515 10+ year member]

The longer side (anode) is hooked to positive.

The resistor can go on either side.

You can just series 4-5 and won't need a resistor. If the forward voltage is 3.5vdc, you'll need 4 in series to run off a vehicle. If it's around 3vdc, I'd go with 5. Some will take additional voltage while others are very sensitive. The current passed increases substantially as voltage rises.