Zemismart announced the MTL3-CW on its community forum on 3 November 2026. It is a LED strip controller for tunable white (CCT) strips, and it connects over Matter on Thread, not Wi-Fi or Zigbee.
What it does
The MTL3-CW drives 12 V and 24 V constant-voltage CCT strips, the kind with separate warm and cool white channels. It sets brightness from 1 to 100 percent and mixes the two channels to change colour temperature. The usable temperature range depends on the strip, not on the controller. Zemismart rates it at 5 A per channel and 20 A in total, and it has an external antenna to improve Thread range in cabinets or behind furniture.
Zemismart pitches it for daily lighting routines: cooler, brighter light during the day and warmer light in the evening, run by automations rather than by hand.
Home Assistant and other platforms
Because it is a Matter device, the controller pairs with Home Assistant through the built-in Matter integration, and any Matter controller should be able to run it. As with all Thread devices, it needs a Thread border router on the network. Many recent smart speakers and hubs include one, and Home Assistant users can also use a Thread radio such as the one in Home Assistant Connect ZBT-2. Control stays on the local network, with no cloud account needed.
What is still missing
The forum post gives no price, no release date and no list of shops. CCT controllers that run on Matter over Thread are still uncommon, since most cheap strip controllers use Wi-Fi with a vendor cloud or Zigbee. For anyone who has already built a Thread network, this is one more category of device that can join it.