If the Sylvania bulb does not support Apple’s HomeKit protocols it cannot be added to the Home app. Read your Sylvania instructions or call Sylvania customer support for instructions.
Here’s what the internet says about the matter.
Setting Up SYLVANIA SMART+ with HomeKit
To integrate your SYLVANIA SMART+ device with HomeKit:
- Install the Bulb: Screw the bulb into a socket and ensure it's powered on.
- Download the SYLVANIA Smart Home App: Available on the Apple App Store.
- Update Firmware: Open the app, log in or sign up, and check for any firmware updates. Some users have found success by selecting the "Select your smart home Speaker" option within the app, which reveals devices needing updates.
- Add to HomeKit: After updating, open the Apple Home app, tap "Add Accessory," and either scan the HomeKit code on the bulb or enter it manually.
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The instructions suggest entering the HomeKit code manually if scanning doesn’t work. Try that.