in the picture is there a necessity to have the power feeding between the two strings of pixels? Assuming: controller output is 5VDC at 5A (25W) and each string of 50 pixels draws 15W; only two strings of 50 pixels. As per this wiring diagram? -V ---P---P--- V- D ---P---P +V ---P---P--- V+ Or, does it have to have no power connection between the two strings, as per this diagram? -V ---P P--- V- D ---P---P +V ---P P--- V+ So which of the three options is correct/better? Would it work with either of the two options above?