Hubs & protocols

SMLIGHT SLZB

smlight

Built inLocal pushPlatinum

The SMLIGHT SLZB integration allows you to monitor and manage your SLZB devices directly from Home Assistant. This integration provides direct access to many features available in the SLZB device's web UI, such as managing firmware updates, monitoring device health through diagnostic sensors, and controlling settings like LED modes or restarting the device.

Documentation Source code

In Apple Home through HomeKit Bridge

What HomeKit Bridge makes of each kind of entity this integration creates, read from its source code. A device only gets the ones that apply to it.

Entity	Shows up as	Note
`light`	Light
`switch`	Switch or outlet
`binary_sensor`	Sensor (motion, contact, leak, smoke…)
`sensor`	Sensor (temperature)
`button`	Button (as a switch)

What people report

SMLIGHT SLZB coordinators work locally with firmware updates and now Bluetooth proxy and IR on newer models. Older SLZB-06 units may need a firmware reflash.

Works2
Partly works1

Device	In Home Assistant	What they said	Source
SMLIGHT SLZB U series	Works Local	Acts as Bluetooth proxy on SLZB-OS Saved copy Proposed change Register a Bluetooth scanner, so that SLZB U series (esp32-s3) devices running SLZB-OS can act as Bluetooth proxy. Initially, we only support passive/active scanning. There is not currently any support for active GATT connections. This PR introduces a new dependency Excerpt saved from GitHub on 2026-10-23.	PR #174710 · 2026-06
SMLIGHT SLZB-Ultima	Works Local	Infrared receiver entity added Saved copy Proposed change Add Infrared Receive entity for SMLIGHT. IR is only available on SLZB-Ultima devices. ## Type of change <!-- What type of change does your PR introduce to Home Assistant? NOTE: Please, check only 1! box! If your PR requires multiple boxes to be checked, you' Excerpt saved from GitHub on 2026-10-23.	PR #175188 · 2026-06
SMLIGHT SLZB-06 (first generation)	Partly works Local	False unsupported firmware warning; old 0.9.9 firmware needed reflashing Saved copy The problem On a first-generation SLZB-06 device (ESP32 classic), the `smlight` integration raises an `unsupported_firmware` repair issue suggesting the user flash newer firmware via https://smlight.tech/flasher/#SLZB-06. However, no migration path actually exists for this hardware generation, all current firmware in SMLIGHT-Tech/slzb-esphome is built for ESP32-S3 (the newer hardware generation, "06xU R1-73"). Attempting to flash the available `.factory.bin` on the ESP32-classic hardware would brick the device (incompatible bootloader, partition table, and SDK). The user is presented with an … Excerpt saved from GitHub on 2026-10-23.	Issue #173991 · 2026-06

Gathered from GitHub issues, pull requests, discussions and docs, and from r/homeassistant. These are individual reports, so check the linked thread and the date before you buy.

How it connects

Local push

Talks to the device on your network, and the device tells Home Assistant the moment something changes.

Found automatically over

DHCP
Bonjour (zeroconf)

Details

Installs (analytics)	27,712 (3.91%)
Quality scale	Platinum
Added in	Home Assistant 2024.9
Set up in the UI	Yes
Maintainers	@tl-sl

Limitations from the docs

Switching the firmware update channel (for example, stable or development).
Changing firmware modes (for example, Zigbee coordinator, Zigbee router, or OpenThread).
Configuring security settings.
Adjusting network settings.
Setting up the WireGuard VPN client.

In ReReHome

Whatever HomeKit Bridge shares reaches Apple Home as normal HomeKit accessories behind your Home Assistant bridge, so ReReHome shows and controls them like any other.

Bridges get their own settings page listing the accessories behind them.