Pros: Excellent little AC current supply that can attach direct to many LED emitters.

Cons: Be very careful not to contact any points on the AC input side.
Heat was discussed in the comments as a possible issue, I uploaded an image showing the hottest parts are the diode and capacitor on the output side, about 145 degrees F, but that should be within their limits.

Other Thoughts: I stuck it to a heatsink via the two flat chips (supply chip and optocoupler), but it does not appear they are the hottest components.

Bottomline: I combined this with the 11809 12W P7 emitter, which slightly underpowers it but is enough to still produce a blinding output.

Pros: - Small, designed for integration into a DIY project
- All contacts are clearly labeled
- Seems robust
- It's colorful!

Cons: - Gets very hot, I measured 160F (74C) peak temp (room temp was 62F).
- Doesn't output a full 2 Amps. I measured 1.08Amps output to three SSC P4 in parallel.

Other Thoughts: At 160F it's too hot to touch (not that you should touch it anyway) and melts any nearby hot-melt glue.
I measured on the DC output end 1.08 Amps output to three SSC P4s in parallel at 3.15 Volts which is 3.40 Watts of output.
On the AC input end I measured (with a Kill-A-Watt) Watts = 4, Volts = 117, Amps = 0.055.
Which doesn't quite add up (W = V * I) but at least it's empirical. It doesn't show any noticeable peak when I first switch it on.

Bottomline: I built a desk lamp using this, three SSC P4s (sku 1445), and three lenses (sku 13983). I mounted them on a CPU heatsink screwed to the inside of a goose-neck lamp. The reflectors are mounted in very carefully cut layers of cardboard fitted to "snap" onto the heatsink. The whole assembly puts out a very respectable amount of light, although it is a bit harsh.