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Their lights are nice, but their motion sensor drains the battery in 2 months or so. Eventually I figured out that I could control the IKEA lights via Philips Hue, so I could switch to a Hue sensor which is already lasting a few years.

In general, Philips Hue / Signify is very reliable in my experience, though expensive.

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I've got a bunch of Hue motion sensors (which have lux and temperature sensors too btw). I've replaced the batteries (2xAAA you can grab at any store) exactly once during the 5 years so I've had them.

There is something odd about the battery life on the Ikea motion sensor.

I use it in our bathroom and it's activated multiple times per day. The first battery lasted about 3 months but the second battery has been going for over a year.

There are some reddit threads but I never got a clear answer.

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