Hi, looking for some advice on type of wiring to use please. I'll be running 270ish LEDs, 4.5m of 60/m, and am mounting the Pi on the frame I'm building right next to the end of the strip to keep the data lines short. I have a 30A power supply (cheaper than the 20A version) which will need a 2m cable from it to the strip and Pi. What would anyone recommend for the cable from the power supply to the strip and also what is recommended to create the corner joints? Please don't just say something like 'thick <whatever> wire' as what you may consider thick may be different to what I might consider thick. Also, would injecting power at both ends be enough or should I be looking to add it separately to each bit of strip? Many thanks for any advice.