How to wire 12v lights

[GeeTwo]

If you do not need to turn them off, direct wiring to the PDP is allowed and very easy. If you have multiple strings, use a splice away from the PDP, as only one wire is allowed in each PDP connector.

If you do need/want to turn them off, a spike relay is the easy way to do it, though a 12V relay module is also workable, and can be switched from a DIO rather than requiring the current of a relay port. At this hour, you'll probably have to use what you have on hand.