Product Library / Switches & Dimmers

Discontinued

Leviton Decora Smart Wi-Fi Dimmer, 2nd Gen (D26HD)

Compiled by SmartHomeWorkflow Research · Leviton · Switches & Dimmers

First time this axis has been stamped — 'unknown' with a null date since the record was written. ⚠ Note the axes disagree ON PURPOSE and that is the point of splitting them: market is ended (discontinued, superseded by the D36HD) while service is full (the app, the cloud and the Matter firmware path all still work). A discontinued product that still functions is exactly the case a single lifecycle field could not express. Discontinued in favor of the D36HD, and Matter is not out of the box: it arrives via an opt-in Early Access firmware update through the My Leviton app, and applying it breaks an existing Apple HomeKit pairing until the device is re-added over Matter.

Exactly which product this is[5]

Model number
D26HD-1BW
Generation
Not established
Region this page covers
Not established
Also sold or listed as
Not established
Replaced by
D36HD-1BW

“Not established” means we have not sourced that detail yet — not that the product has no model number, generation or regional variant. We publish the gap rather than filling it.

Compatibility

EcosystemSupportThe catch
Amazon AlexaWorksWorks with this ecosystem[2][5]Cloud skill via My Leviton account; Leviton states existing cloud integrations are not impacted by the Matter update, so both paths can coexist.
Google HomeWorksWorks with this ecosystem[2][5]Cloud integration via My Leviton account; Matter is an alternative path.
Apple HomeWorksWorks with this ecosystem[2][5]Native HomeKit on stock firmware. Installing the Matter firmware removes the existing HomeKit connection; the dimmer must be re-added to Apple Home with its Matter pairing code from the My Leviton app.
SmartThingsWorksWorks with this ecosystem[2][5]Listed by Leviton among supported ecosystems; cloud-linked, with Matter as an alternative path.
Home AssistantPartialPartial support — see the catch[2][4]No official Leviton integration. The community decora_wifi integration is cloud-polling, flagged legacy, and does not list the D26HD. The documented route is the Matter firmware plus Home Assistant's Matter integration.

Protocols: WIFI · MATTER[1][2][3][9]

What it can do[8]

You can tell it to

  • On/off
  • Brightness

It reports

Not established — we could not confirm this from vendor documentation

Listed capabilities are what we could establish from vendor documentation. An ability missing here is unestablished — not necessarily absent.

Subscription reality[5]

✓ Works without a subscription: Yes.

Vendor account required: Not established — we have not sourced this yet.

My Leviton app, schedules, scenes, and remote access are free; no subscription tier documented on Leviton's product or support pages.

Maintenance reality[5]

Who it's for

A fit for households with a neutral wire that want a 600 W-incandescent/300 W-LED dimmer working across Alexa, Google, SmartThings, and Apple Home, and are comfortable managing firmware on a discontinued-but-supported model; buyers starting fresh may prefer its D36HD successor.

Sources & method

Numbered sources below back the facts marked with the matching number above. This is a research profile: compiled from manufacturer documentation, certification registries, and published testing — we state facts, not verdicts, and we have not physically tested this unit. How we work →

  1. [1] leviton.com/products/d26hd-1bw — vendor-page research, verified 2026-07-17
    Backs: Protocols, Market availability
  2. [2] leviton.com support: 'Decora Smart Wi-Fi 2nd Gen Matter Support' + 'How do I Update my Decora Smart Wi-Fi 2nd Gen Device to Support Matter?' + Leviton press release 2023-07-18 — press research, verified 2026-07-17
    Backs: Amazon Alexa compatibility, Google Home compatibility, Apple Home compatibility, SmartThings compatibility, Home Assistant compatibility, Protocols
  3. [3] csa-iot.org/csa_product/d26hd/ — D26HD, Leviton Manufacturing Company, certified 2025-02-21, cert ID CSA250F5MAT45127-24, fw 2.3.10, WiFi+Bluetooth transport — registry-lookup, verified 2026-07-17
    Backs: Protocols
  4. [4] home-assistant.io/integrations/decora_wifi/ — community maintained, cloud polling, legacy flag, D26HD absent from supported-model list — vendor-page research, verified 2026-07-17
    Backs: Home Assistant compatibility
  5. [5] leviton.com/products/d26hd-1bw, read 2026-08-10 — 'Decora Smart Dimmer Switch, Wi-Fi, Neutral Wire Required', model D26HD-1BW; status DISCONTINUED with suggested replacement D36HD-1BW; NO price or MSRP published; neutral wire required; dimmable LED/CFL 300 W, incandescent/halogen 600 W, magnetic low voltage 600 VA; Matter available via firmware update through the My Leviton app (opt-in); ecosystem support listed as Amazon Alexa, Google Assistant, Apple Home/Siri, SmartThings, Sonos, Resideo — vendor-page research, verified 2026-08-10
    Backs: Product identity, Market availability, Service status, Research status, Maintenance, Price, Subscription, Amazon Alexa compatibility, Apple Home compatibility, Google Home compatibility, SmartThings compatibility
  6. [6] leviton.com Decora Smart Wi-Fi support hub, its 2nd-Gen Matter-support and 1st-vs-2nd-gen articles, and the cited home-assistant.io decora_wifi integration, all re-read 2026-08-18 — vendor-page research, verified 2026-08-18
  7. [7] Two Leviton first-party surfaces, both read 2026-08-20. The product page (leviton.com/products/d26hd-1bw) states the negative twice — "No hub required with My Leviton app" and "Connects to Wi-Fi; No hub required" — with "Requires 2.4 GHz Wi-Fi Network". Leviton's Decora Smart Wi-Fi 2nd Gen Matter support article then supplies the other half: devices are enrolled "to a Matter enabled hub", and "Depending on your smart home platform of choice, this could be a supported Google Nest, Amazon Echo, Apple HomePod, or SmartThings device for example"; for Apple, "Controlling Matter accessories with the Apple Home App and Siri requires an Apple Home hub such as a HomePod or Apple TV running the latest software." — vendor-page research (BQ-191 provider backfill, population (b): the `hubs` axis), verified 2026-08-20
    Backs: Required hub or bridge
  8. [8] leviton.com/products/d26hd-1bw, read 2026-08-20, which describes the dimming in unusual detail: "full range dimming performance"; "double press the top rocker to quickly snap on at maximum brightness; or double-press bottom rocker to snap OFF"; "customizable fade rates that gradually turn lighting on or off, or preset light level options"; and "Schedule lights and connected loads to dim/brighten or turn ON/OFF at specific times or based on sunrise/sunset". Control is "from anywhere" in the My Leviton app, and it "Works with Alexa, Google Assistant, Apple Home, SmartThings, Sonos, Resideo, and Matter". — vendor + ecosystem-documentation research (BQ-187 capabilities population, the `hubs` shelf), verified 2026-08-20
    Backs: Capabilities
  9. [9] This record's existing per-model Matter evidence, re-read 2026-08-20 against the ruled definition of `protocols`: certificate CSA250F5MAT45127. No new external source was fetched — the evidence already on this record was re-examined and this entry states what it establishes. — protocols-definition sweep (BQ-222 batch 2; ruling §1 of docs/decisions/2026-08-20-RULINGS-SITTING.md), verified 2026-08-20
    Backs: Protocols

Compatibility and lifecycle information reflects the last-verified date above and can change without notice (firmware updates, cloud-service changes, discontinuations). It is provided as-is, for information — verify with the manufacturer before purchasing. Spot an error? Tell us and we'll fix it. Full terms: Terms of Service.

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