Yes, those are what I was referring to when I was talking about generic or multi-purpose home use LEDs. The summary from the LED forums I've read is that even though they state the color temperature of eg 5000K, they are not full spectrum lighting as compared to traditional T5 or power compacts according to a color/spectral chart, so they may not even have a peak or a modest hill, on the photosynthetic wavelengths. Unlike reef lighting, which provides spectral charts, I haven't seen a chart for those LEDs. Anyway, that's why they make 660 nm plant grow LED bulbs. which is what I would recommend for you, or other wise get a reef capable full spectrum, white LED which cost a lot.
Even if that LED works for some plant growth, (which I won't deny, if others have experimented with specific brands/models) an equivalent wattage of 660 will grow so much better as all of the PAR is directed for photosynthesis, just like actinics work on corals. Just search for "plant grow LED' on amazon and you'll see what I mean.
That power compact will definitely work and has a good track record.