[ilyt]

That sounds like something you want as a feature in bigger system, not something you'd want to buy a specific bulb just for that.

> Every time the switch turned on the light made a 20 ms computation based on the time it stored (via a low power clock and a super cap) and turned to the right brightness and color temperature automatically.

Where it got the time sync from ? You said it didn't need configuration or an app ?

[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