ShayneT Posted December 9, 2013 Share Posted December 9, 2013 I have one string on 12v Technicolor pixels that kind of strobe when on full white. Maybe flickering but they don't change color and stay white. The string has 40 pixels, about 25 feet from controller (PR12R), and one null pixel. I am thinking it is a voltage thing. I have dialed back the voltage to 10v as a precaution against regulator overheating leading to failures. Can I run the two power lines straight through the null pixel? An identical string without a null pixel does not strobe? Could using a different style 2811 pixel cause it as a longer string using the Technicolor pixel as the null and cat5 cable versus 18g alarm cable on the problem child? Just weird as only happens on full white which is why I think voltage instead of speed? Is my thinking right? It would be possible to inject power at the end but I was hoping I am missing something. I cannot recall if it strobed before I dialed the power down. Link to comment Share on other sites More sharing options...
k6ccc Posted December 9, 2013 Share Posted December 9, 2013 If you have a voltmeter, measure the voltage at the far end of the string with all pixels at full white (the worst case scenario). And yes, at least on every 2811 pixel I have used, you can feed power to the end (or somewhere in the middle) of the string. If the voltage is low at the end, that could well be your problem. If that's the case, feeding power at the end should help solve your problem. I have some 2811 strips that are in a string of 9 segments of 33 pixels with 2 feet of wire between each segment. As expected, the voltage drop made for some interesting color shifts at the end of the string. I am now feeding power into the strip between the 6th and 7th segment. Solved my problem. Link to comment Share on other sites More sharing options...
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