Everyone keeps telling me “use a DC Controller for your Rainbow Flood” – I understand, I just dont agree. I took (3) 12v transformers, and connected those to 3 rectifiers, (one for each color) and then connected that to an rJ-45. The danger here is that there is no regulation on the transformers, and they put out slightly over 12v (it ends up being about 14v) So to prevent dammage ot the flood, I should add a resistor to the DC side, or a dimmer to the AC side – or just program the channel to never go above 90%.  any of those methods should result in 12v out.