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Matter light sensor on Home Assistant

For light sensors, Home Assistant supports pairing, control and automation triggers. It does not support automation actions. Our confidence in this answer is High.

High confidence

2026-10-18 last checked

3/4 capabilities confirmed

At a glance

Answer	Home Assistant
Pairing	Y
Control	Y
Starts an automation	Y
Controlled by an automation	N
Confidence	High
Matter spec	1.0+

Y = confirmed for this device type, Partial = works with limits, N = not supported by this platform, Unknown = not enough dated evidence. These are type-level answers, not a guarantee for one product.

What this means

All four answers are confirmed for this device type on this platform. Individual products can still implement less than the device type — check the product notes before you buy.

Requirements

Hub requirement: Home Assistant Matter Server (HA OS recommended). Thread border router for Thread devices.

Matter spec: 1.0+.

Confidence

We have direct, dated evidence for most of these answers, including native hands-on reports where available.

Last checked 2026-10-18. Last change 2026-10-16. The answers above come from the published type matrix; the sources below are what they rest on.

Sources

home-assistant.io · official · 2026-10-18
smarthomescene.com · test · 2026-10-18
forum.aqara.com · community · 2026-10-18
raw.githubusercontent.com · official · 2026-10-16

Frequently asked questions

Does Home Assistant support a Matter light sensor?

Home Assistant pairs a Matter light sensor and shows its lux reading; the row is High confidence, checked 2026-10-18. Home Assistant can control a Matter light sensor from its app, including the lux reading (High, checked 2026-10-18).

Can a Matter light sensor start a Home Assistant automation?

Yes — light level from a Matter light sensor can start a Home Assistant automation when it falls or rises. As an action, Home Assistant cannot use a Matter light sensor in an automation (High, checked 2026-10-18).

What do I need to add a Matter light sensor to Home Assistant?

Home Assistant needs a Matter controller before a Matter light sensor will report.

Next steps

All Home Assistant answers for light sensors, side by side — the full light sensor matrix across every platform.
Compare Home Assistant with another platform — pairing, control, triggers and actions in one table.
Check whether your setup will work — answer a few questions and get a verdict with caveats.
Matter products of this type — tested products with their own notes and sources.
Matter on Home Assistant: every device type
Light sensor support guide
All platforms compared
How to check Matter certification
Matter firmware updates on each platform
How we check — evidence rules, confidence ratings and how often we re-check.

Other platforms for light sensors

Apple Home — supports pairing, control and automation triggers High
Google Home — supports pairing, control and partial automation triggers Med
Amazon Alexa — supports pairing and control Med
SmartThings — supports pairing, control and automation triggers High
Homey — supports pairing, control and automation triggers Med
Hubitat — no confirmed support Med

Informational only — verify before you buy. How we check · All light sensors across platforms