The original post seems like a commercial for Asian distributors, but I'll let the mods make that decision.
As per our other discussions on this topic, these type of bulbs have power supplies and regulators of very erratic quality and durability. No one doubts the light quality and durability of the LEDs they use. I trust puck lights, for instance, about as far as I can hit them with a hockey stick.
Conversion LED bulbs have been beaten to death here. I hope these are of better quality, but my CFLs are lasting longer than many of these commercial LED retrofits.