[SamBam]

It sounded like it was a real-time-clock chip, powered by the capacitor. So it's self-contained.

[ilyt]

Right but that cap ain't gonna hold power for few months on the shelf. Supercap self-discharge rate is high enough that it will be down to zero in weeks to months from my experience.

[ghostpepper]

I guess it could get it from GPS if each bulb contained a radio but this sounds incredibly inefficient