Precision timing output, but watch, and she explains a bunch of issues with those, and that they are awesome.
The other strip looks like you could make it whatever color you want, but it will be the whole strip. It looks like you will need like 10amps to run 60/meter.
I'm looking at the simple analog Adafruit RGB strips, not their serial controlled ones. Although those do look sweet.
I'm making an airsoft target range. I plan on using the RGB strips to make a "crosshair" shape behind the target. If the shape is red, the player should shoot, if the shape is green, the player should not shoot. Having the extra colors is nice, but I don't really need to control each LED individually.
I was hoping that someone might have already tried these, and could offer some experience up with them. They look the same as the Adafruit ones. Each strip has a +12 wire, a G wire, a R wire, and a B wire.