Just setting up my P2s and wanted to make sure I'm jumpered up properly for power. I'll be running 12v Ws2811 pixels with it. From the videos and PDFs I've looked at I presume I just put the jumpers on k3 as 1-2,3-4 and leave the jumpers off the J1, J2 and k2 as per the photo below. Presume then it's safe to connect my 12v power supply to the P2 without causing any damage. The other thing I want to check is that I presume I should not try to power the pixels via the board ( hence leaving J1 and J2 un-jumpered ( or open) as the board can only handle 1amp and a 5m strip light on White would pull 3amps and damage the board ( right?... I hope). Therefore I would power the pixel strips via power injection direct from the power supply. If this is correct do I power inject at the beginning of the first strip and then between every subsequent strip? If so is it fine to use one of Rays 3pin T shaped cords where the middle is two core for power injection and put this between the P2 and the first pixel strip or is there a risk of back feeding power back to the P2 and damaging it ( or is this a nonsense notion and too much will not back feed into the P2)? Sorry if the questions sound dumb to the educated but this is my first time using a p2 and I really don't want to blow it up. I used the p12s last year but that board can feed power directly from the board to the pixels and has fuses etc for protection which the P2 does not.