Sengled bulb help
Sengled's app stopped signing people in, Alexa dropped its skill, and the bulbs are still in the lamps. These pages say what is known, with dates and links, and what you can still do with Sengled Wi-Fi, Zigbee and Bluetooth bulbs. Every fix works without our app.
Written by Tomorrowish, the makers of Relight. Checked November 2, 2026.
- Sengled Home app not working or won't let you log in: what you can still do
"Operation failed" on sign-in or sign-up: why, and what still works.
- Is Sengled out of business? What we know, and what still works
The dated facts, and which bulbs keep working without Sengled.
- How to control Sengled Wi-Fi bulbs without the Sengled app
Home Assistant, an iPhone app or new firmware, compared.
- How to reset a Sengled Wi-Fi bulb (and what a reset does)
5 quick flips, 3 flashes and 2 blinks, and why to think first.
- Sengled bulbs not working with Alexa or Google Home: what changed
The Alexa skill is gone. What still works, and the ways back.
- Is my Sengled bulb Wi-Fi, Zigbee or Bluetooth? Read the model code
W is Wi-Fi, E is Zigbee, B is Bluetooth. Known codes inside.
Relight
Relight is an iPhone app from Tomorrowish. It needs no account and has no cloud: commands go from your iPhone straight to the bulbs on your Wi-Fi. Full control of 2 lights is free; Relight Pro is a one-time $3.99 for every light, scenes, Siri and Shortcuts, and a Home Screen widget. No subscription.
It works only with Sengled Wi-Fi bulbs and strips (code starting with W), only while your iPhone is on the same Wi-Fi, and it doesn't connect to Alexa or Google Home.