I just thought i would raise this as in the past couple of days i have had reports of 3 seperate cases where people had bought the 2801 12vdc RGB strip from Ray Wu and had issues with getting the strip running. It appears that this strip has been labelled incorrectly and has the data and clock signals mixed. In most cases the strip doesnt do anything and appears to be dead or could have some randomly lit sections staying on. Swapping over the data and clock signal on these strips will then make the strip work correctly with no damage. So something to be aware of if you have or are getting any of this strip that the data and clock markings on the strip may be around the wrong way. Not a hard fix if you are aware of the issue.