[Workaccount2]

It's possible, but in the worst way.

The idea you have in your head, is not possible. A single LED (like one tiny bulb, not a string) hanging on your evergreen shrub is going to consume about 1000x more energy than what could be expected to be available floating around the local airwaves. So - impossible.

But of course you could just increase the energy in the airwaves by 1000x, give the middle finger to the FCC, and risk having to take out a loan to cover your energy bill.

Or you could go for inductive coupling, which actually would be viable and has been demonstrated as "wireless energy" ad-nauseam for the last 120 years. You would just have to deal with extremely finicky LED alignment to get power from the very difficult to engineer and extremely power inefficient source coil which will bathe your front yard in a rapidly oscillating magnetic field. Again pissing off the FCC and super charging your energy usage.

Or you can just plug in your lights.

[ouryummydino]

In an outdoor context one could also harvest another abundant energy source. I think this is actually sort of interesting. A swarm of individual lights could each be pulsed randomly at a very low duty cycle and the effect might still be usable.

[skypanther]

Sadly, I expected that to be the answer. Oh well, I can dream! Thanks for your helpful follow-up.

[justsomehnguy]

You can do that with microwave oven. It would need some adjustments..