Location data, when you're home/not home, which room you're likely in/not in. Data that costs almost nothing to produce, but can be sold for millions.

Bulbs tell them when you're in the kitchen, bathroom, bedroom, etc. Relatively easy to combine it with smart tv, smart watch, security cam, and app/phone data to identify you exactly.

Combine it all and it's likely they'd be able to identify you exactly and identify what you're doing with a high degree of certainty, then micro-target you with ads or propaganda.

Honestly, there comes a point where you'd have more privacy shoving a camera up your ass. Less privacy than the DDR.

…are you serious?

There would be so much data in understanding people’s light usage. For example, you could figure out how late or early people get up, number of people living in a house, how crowded the house is, how many lights are used per room, etc etc. it would be a gold mine of information.

Let’s say you’re a home automaton designer. You want to design devices to be used in the home, but in order to design such devices, you need enough of a stockpile of user data. This lightbulb data would be incredible valuable.

You can probably even analyse the data and determine things like whether someone is watching tv late at night.

From a nefarious view, how valuable would this data be to robbers and thieves?

I can think of a few companies / products that would love to know that you're in the bathroom every couple hours, for instance.

Or even anonymised, a company or study might want to buy "average Nova Scotian time spent in living room on weekends"

Big data is worth big $$$