I'm sort of in charge of lighting (and hot water) at work, and I've been working on replacing incandescents and CFs with LEDs.
This one has 60 cool-white LEDs and costs about $9 with shipping.
The "pc boards" are copperclad aluminum. It's all nicely done except for the ghastly wiring and soldering. Most of the wires soldered to the modules look to be almost shorting to the aluminum. I can't imagine that the traces over the aluminum are legally insulated... there seems to be a thin layer of epoxy or paint as the dielectric. I can see a big cap down inside, so the current limiter is probably that cap and maybe a resistor. I'm thinking of using this general sort of lamp for 24/7 stairwell and garage lighting, where color temp doesn't matter.
For general lighting, on desk lamps and torchieres and such, the Philips led bulbs look great. They are bright, good color temp, and dim beautifully. We pay something insane like 30 cents per KWH, so they pay for themselves quickly.
CFs turn on slow when it's cold and don't last unless they are left on full-time. And they smell bad when they fail. I had to take the CFs out of my garage at home because their EMI jammed the garage door opener.