I'm wondering how they are wired. The samples I have use an opaque epoxy coating so all I can see is the front. I wonder if there is a regulator or just resistors for dropping the 12v down to 5v. Also, since there are two 5050 LEDS, I presume they are in series, so I'm guessing that they are not behind the regulator (if there is one at all) but rather just have 3 resistors, one each for R, G & B. Bad news if so is that they would not be tolerant of voltages much above 12v, but at least due to the 2x 5050 LEDS, that would mean instead of burning 7v as heat, it's only ~4v.