I'm going to run six 12v 2811 strips around the window frames of my house next year with the ECG P2 controller. Port 1 will control 3 strips and Port 2 will control the other 3. the distance between stips will be small (less than 5 feet) and I plan on injecting power between each stip and at the end. What power supply do I need for the injections 150w, 350w? Thanks