We engineer the local-first hardware your home runs on. No cloud, built to last.
SMLIGHT designs, builds and ships local-first hardware for the connected home — SLZB network coordinators and SMHUB standalone hubs for Zigbee, Thread and Z-Wave, plus networking gear and LED-lighting controllers. Stable radios, regular firmware updates and no lock-in: every device works on its own or alongside whatever smart-home system you already use.
Field notes from R&D. Firmware, field tests, teardowns.



Ten product lines. One local-first philosophy.



Independent reviews, unfiltered.
Réseau Zigbee : comment bien le construire et l’étendre partout ?
Compare the SMLIGHT range.
SMLIGHT builds far more than the devices below — coordinators, USB dongles, LED controllers, IoT bridges and click-in add-ons all sit in the full product range above. This guide zooms in on the two families people mix up most often: network adapters (SLZB), which bridge radios to a server you already run, and standalone hubs (SMHUB), which run the smart-home stack on the device itself. Here’s how the six series compare, feature by feature.
| Feature / series | Network adapters · SLZB | Standalone hubs · SMHUB | ||||
|---|---|---|---|---|---|---|
SLZB-06xUTriple radio (ZB, Wi-Fi, BT) | SLZB-MRxUQuad radio (ZB, Thread, Wi-Fi, BT) | SLZB-Ultima6× radio (ZB, Thread, Wi-Fi, BT, ZW3, 4G3) | SMHUB-NanoTriple radio (ZB, Wi-Fi, BT) | SMHUB-NanoMRQuad radio (ZB, Thread, Wi-Fi, BT) | SMHUB Ess/Prem6× radio (ZB, Thread, Wi-Fi, BT, ZW3, 4G3) | |
| Series type | ||||||
| ESP32-S3 network adapter | ✓ | ✓ | ✓ | – | – | – |
| Linux standalone hub | – | – | – | ✓ | ✓ | ✓ |
| Radios & functions | ||||||
| Zigbee coordinator | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Zigbee router | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Thread | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Zigbee + Thread simultaneously | – | ✓1 | ✓ | – | ✓1 | ✓ |
| Wi-Fi 2.4 GHz | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Wi-Fi 5 GHz | – | – | – | ✓ | ✓ | ✓ |
| Bluetooth | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Z-Wave | – | ✓2 | ✓3 | – | ✓2 | ✓3 |
| 4G / LTE | – | – | ✓3 | – | – | ✓3 |
| USB passthrough (×1) | ✓ | ✓ | ✓ | – | – | – |
| USB passthrough (×many) | – | – | – | ✓ | ✓ | ✓ |
| PoE | ✓ | ✓ | ✓3 | ✓ | ✓ | ✓3 |
| Ethernet | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| USB power | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| SD card (up to 2 TB) | – | – | – | ✓ | – | ✓ |
| 3.5 mm audio | – | – | – | – | – | ✓ |
| IR receiver | – | – | ✓ | – | – | ✓ |
| IR transmitter | – | – | ✓ | – | – | ✓ |
| Buzzer | – | – | ✓ | – | – | ✓ |
| Microphone | – | – | ✓3 | – | – | – |
| Ambilight | – | – | ✓ | – | – | ✓ |
| Software | ||||||
| SMHUB-OS · Linux, Node.js, Python apps | – | – | – | ✓ | ✓ | ✓ |
| SLZB-OS · zHub, scripts | ✓ | ✓ | ✓ | – | – | – |
| ESPHome firmware | ✓ | ✓ | ✓ | – | – | – |
| OTA core / radios | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| DDNS | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| WireGuard | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Tailscale | – | – | – | ✓ | ✓ | ✓ |
| Matterbridge | – | – | – | ✓ | ✓ | ✓ |
| Node-RED | – | – | – | ✓ | ✓ | ✓ |
| OTBR | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Z-Wave JS UI | – | – | ✓ | – | – | ✓ |
| MQTT | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Works with | ||||||
| ZHA | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Zigbee2MQTT | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| OpenThread | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Z-Wave JS UI (Z-Wave models) | – | – | ✓ | – | – | ✓ |
| Home Assistant | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| openHAB | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| HomeSeer | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Homey | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
- 1Except for MRW10U, which features Zigbee/Thread + Z-Wave SoCs.
- 2Applicable only to MRW10U; other MRxU models do not support Z-Wave.
- 3Expandable via an optional click-in add-on module.
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What owners are actually saying.
I'm very happy with my SLZB-MR5U! It's nice, and seems to work quite well managing my Zigbee Network. Didn't give thread a try yet, but good to know it could do both! Also had some questions with configuration, which were promptly answered in a support ticket. Thanks!
I purchased an SMHUB ESSENTIAL and configured it as a controller for a Zigbee network, a Zigbee2MQTT network, and a Z-Wave network. I had some trouble configuring it, but thanks to the endless patience of SMLIGHT's technical support, I finally got it working. I was able to replace three separate antennas for the three networks with a single device, which is also PoE-enabled, allowing me to plug it into an Ethernet port.
Quisiera expresar mi más profunda y sincera gratitud por el excepcional apoyo que recibí durante todo el proceso de resolución del problema con el dispositivo SLZB-06M. Desde el primer momento en que me puse en contacto con ustedes, fui tratado con amabilidad, profesionalidad y eficacia. Identificaron rápidamente el problema, me ofrecieron una unidad de reemplazo sin coste alguno y la hicieron llegar a mi domicilio en menos de una semana. Eso es realmente extraordinario. Me complace comunicarles que el nuevo dispositivo funciona ahora perfectamente como coordinador Zigbee, mientras que la unidad defectuosa ha podido configurarse con éxito como router Zigbee, ampliando la cobertura de mi red. Toda mi red Zigbee fue reconocida automáticamente y ha estado funcionando de forma estable desde entonces. Ojalá más empresas trataran a sus clientes de la manera en que ustedes me han tratado a mí. Su dedicación a la satisfacción del cliente y la calidad de su servicio posventa son verdaderamente sobresalientes y constituyen un magnífico ejemplo para todo el sector. Gracias de todo corazón. Se han ganado un cliente fiel y no dudaré en recomendar SMLIGHT a cualquier persona que busque soluciones Zigbee fiables y con un excelente soporte.
Koristim ga oko godinu dana, povezano je stotinak različitih uređaja, problem sam imao samo jednom, a podrška je uvek bila tu i pomogla mi da ga rešim! Smatram da je ovo najbolje rešenje za integraciju zigbee uređaja u pametnu kuću na bazi Home Assistant. --- Пользуюсь около года, подключено около сотни разных уствойств, проблема была лишь однажды и саппорт был всегда на связи и помог решить проблему! Считаю лучшим решением для интеграции zigbee устройств в умный дом на базе Home Assistant. --- I’ve been using it for about a year now with around a hundred different devices connected. I’ve only ever run into an issue once, and support was right there to help me sort it out! Honestly, I think it’s the best solution for integrating Zigbee devices into a Home Assistant-based smart home.
Przeprowadziłem pełną migrację mojej sieci Zigbee z ZHA na Zigbee2MQTT wykorzystując koordynator SLZB-MR3U (EFR32MG24). Sieć składa się z 60 urządzeń różnych producentów (Aqara, Philips Hue, IKEA i innych). Początkowo napotkałem problem z trybem Packet Mode, jednak zespół SMLIGHT bardzo szybko przeanalizował logi i udostępnił testową wersję firmware, która całkowicie rozwiązała problem. Po aktualizacji wszystkie 60 urządzeń zostało poprawnie zmigrowanych i działają stabilnie. Co więcej, udało mi się bez problemu sparować urządzenia Philips Hue, które wcześniej sprawiały problemy na innym koordynatorze opartym o CC2674P10. Na duży plus zasługuje również kontakt z supportem. Odpowiedzi były rzeczowe, zespół analizował logi i nie zakończył zgłoszenia, dopóki problem nie został rozwiązany. Jestem bardzo zadowolony zarówno z samego urządzenia, jak i z jakości wsparcia technicznego. Zdecydowanie mogę polecić produkty SMLIGHT każdemu, kto buduje większą i bardziej wymagającą sieć Zigbee opartą o Home Assistant i Zigbee2MQTT.
Just received, I'm not confident with this product. The documentation is missing. I already have a wonderdul SLZB-06 working fine on Zigbee. I want to add Matter on Thread and ZWave in the same way.
Réponse très correct, merci pour l'aide.
Der Support ist super, hilft immer, schnell und zielgerichtet.
I purchased the SLZB-MR4U to extend my Zigbee network into an outbuilding while also future-proofing my smart home with Matter support. The hardware quality is outstanding, and it's clear that a lot of thought has gone into the design. The software is equally impressive, with regular updates and continuous enhancements. When I had a few technical questions, the support team was exceptional. They were knowledgeable, responsive, and provided clear solutions that quickly resolved my issues. Overall, I'm extremely pleased with both the product and the customer service. I'll definitely be looking to replace my main coordinator with another SMLIGHT device in the near future. Highly recommended.
i migrated my Zigbee and Thread Network to the MR4U. OLD: SLZB-06MU and an self flashed ESP32-S3+ESP32-H2 OTBR NEW: SLZB-MR4U with native OTBR (SLZB-OS 3.2.6.dev0) Zigbee on CC2674P10, Thread on EFR32MG26, OTBR native on the slzbOS. Integrated in my existing Apple Thread Network. with the IEEE duplication and some tweaks in zigbee2mqtt i migrated my whole zigbee network with 138 devices. Great Product, great Support!
Trusted by the open smart-home community.
“SMLIGHT has quietly become the default recommendation for anyone serious about running Zigbee locally — reliable hardware, honest documentation, and firmware that keeps getting better.”
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Product announcements, firmware changelogs, and occasional field notes from engineering. Roughly one email per month.






