A couple more comments on the relay specs after giving the datasheet a closer read:
http://www.magnecraft.com/library/secti ... A_389F.pdf
The coil rating for this relay says that it consumes 1.44W. So you are using more energy to power the coil than to power your load. When I referred to it as "overkill" what I'm getting at is that this relay, being rated for 25A switching capacity, is large enough to be able to switch 25*120=3000 watts, or _thousands_ of these LED bulbs. Note however: it is still advisable for safety reasons to use a relay of this size when controlling an outlet, because you never know what somebody else might plug into that outlet. You don't want the relay to be the weak link between the load and the circuit breaker.
So... I like the craftsmanship, but I think there has to be a simpler solution.
I'm also wondering if you're ruled out using an insteon dimmer to control these. LEDs would not have a linear brightness response to the dimmer, but it would probably work fine as an on/off switch. Depending on the electronics in the bulbs....