I've had no issues with my setup for the two seasons i've used it.
As Mike mentioned, its the preferred way to have ground provided with data. But as i've not tried without it, i cant say its needed or if it does nothing.
Yes it will work, and i've done something similar for my garage matrix.
I used Ethernet cable with Ethernet cable glands etc so they click into my controller box. Have a read of the below of how i did it...
Both will give an identical result. Whatever you find easier to wire up.
The main concern with wiring up multiple power supplies is in the low voltage side is connected to controllers and each other. Your drawing isn't clear how this is connected, that will change recommendations for wiring on...
If it was me and looking to keep the static display, i would separate out the sequenced bit of your display to one side of your house. You have a really nice section of retaining wall that has lots of depth and height. Another benefit is it keeps all your controller outputs close together and...
In situations like this, first you must ask…. what would frank do
And the answer, invariably, is: “less… but also more… and definitely sideways.”
A few very general thoughts, offered in the spirit of organic illumination rather than actionable advice:
3D vs 2D
Frank famously believed the plan...
Welcome!
There are a number of us in WA and always happy to help where we can.
There is also the Perth Mini that is a great day out if your interested
https://auschristmaslighting.com/threads/perth-mini-2025-7-june.16676/
You can create a 3D model yourself or there are companies that can do it for you.
View: https://www.reddit.com/r/xlights/comments/1i2xcne/3d_model_of_home_for_xlights/
gives a good example of how to use hover. Just need to mention that you are a home owner and doing it for Christmas...
Controllers
Most controllers can run this amount of pixels easily. How you have it hooked up will determine what you go with. As you mentioned that you would prefer to avoid power injection, i'll assume this in any recommendations.
1. Baldrick 17. This is perfect for a mega tree, 16channels for...