WiZ
WiZ Smart Colour Bulb E27 (8.5 W)
- Native integration
- Local control
- Wi-Fi
- Bluetooth
Prices verified September 2026
See more smart lighting picks on our Amazon storefront →Our verdict
Signify's budget Wi-Fi brand is a full-colour bulb with a proper native, local-push Home Assistant integration — around £15 on Amazon UK, no hub, no cloud dependency for control. Wi-Fi means no Thread border router requirement, at the cost of adding one more device to your 2.4GHz network. Colour saturation is a step below Hue — CRI ≥80 versus Hue's ~90 — fine for mood lighting and dynamic scenes, less convincing for colour-critical rooms. B22 bayonet versions exist too, so it covers UK fittings Hue and IKEA sometimes miss.
What can Home Assistant control on the WiZ Smart Colour Bulb E27 (8.5 W)?
| Control | Type | What it does |
|---|---|---|
| Effect | Select | Exposes WiZ's built-in scenes (Ocean, Party, Cozy, Wake-up, Rhythm, etc.) as selectable light effects via the local UDP API — no cloud round-trip. |
| Effect speed | Number | Controls playback speed of the active dynamic scene; only available while a speed-adjustable effect is selected. |
| Colour temperature | Number (Kelvin) | Tunable white control for non-colour scenes and manual white mode. |
| Colour | RGB | Full colour control for manual colour mode, independent of the preset scene list. |
| Brightness | Number (0-255) | Standard brightness level, pushed locally over UDP with no polling delay. |
HA's wiz integration talks pywizlight's UDP protocol directly, exposing all of WiZ's built-in scenes (Ocean, Party, Rhythm and more) as the light entity's effect list, plus a dedicated effect-speed control that only appears once a speed-adjustable scene is active. Auto-discovery relies on UDP broadcast, which reliably breaks across VLANs or subnets larger than /24, and multiple reports show devices vanishing from discovery entirely after moving them to a DHCP reservation or static IP — manual IP entry via the config flow is the accepted workaround, not a firmware fix. Initial provisioning still goes through the WiZ app over Bluetooth since HA cannot provision a bare bulb, and newly paired units often sit offline for a few minutes while a mandatory firmware update runs first.
Specs
| cri | ≥80 |
|---|---|
| fitting | E27 (Edison screw), B22 bayonet also available |
| wattage | 8.5 W |
| dimmable | Yes, full range via app, voice, or Home Assistant |
| lifespan | 25,000 hours |
| brightness | 806 lm (60W incandescent equivalent) |
| energy rating | F |
| colour temperature | 2200-6500K, plus full RGB colour (16 million colours) |
How does the WiZ Smart Colour Bulb E27 (8.5 W) compare?
| Product | From | Protocol | Local control | Integration |
|---|---|---|---|---|
| WiZ Smart Colour Bulb E27 (8.5 W) (this product) | £14.99 | Wi-Fi, Bluetooth | Yes | Native |
| Athom WLED WS2812B LED strip controller (pre-flashed) | £6.5 | Wi-Fi | Yes | Native |
| Govee Flow Plus RGBICWW light bars H6056 (twin pack) | £69.99 | Wi-Fi, Bluetooth | Yes | Native |
| Govee RGBIC LED Strip Light H619A (5 m, protective coating) | £39.99 | Wi-Fi, Bluetooth | Yes | Native |
Frequently asked questions
- Does the WiZ Smart Colour Bulb E27 (8.5 W) work with Home Assistant locally?
- Yes. The WiZ Smart Colour Bulb E27 (8.5 W) is controlled locally in Home Assistant through a built-in Home Assistant core integration (wiz), so it keeps working if your internet connection or the WiZ cloud goes down. Control and state updates stay on your own network.
- Which protocol does the WiZ Smart Colour Bulb E27 (8.5 W) use, and do I need a hub?
- The WiZ Smart Colour Bulb E27 (8.5 W) uses Wi-Fi and Bluetooth. To pair it with Home Assistant you need no hub — it joins your Wi-Fi network directly; or a Bluetooth adapter on your Home Assistant host or an ESPHome Bluetooth proxy. WiZ's own hub is not required when you integrate through a built-in Home Assistant core integration (wiz).
- How much does the WiZ Smart Colour Bulb E27 (8.5 W) cost in the UK?
- The lowest price we have listed for the WiZ Smart Colour Bulb E27 (8.5 W) is £14.99 at Amazon UK. Prices were last checked in September 2026 and change often, so confirm on the retailer's page before buying.