Philips Hue has added a new feature to its app that allows users to prevent the hue lights from automatically turning on after a power failure.
The only big problem with Philips Hue that users have been dealing with for years is that lights are automatically turned on again after a power failure, even if they were off in the previous state. This means that if your house loses power at 3am, all your hue lights will turn back on at full brightness and you will not be forgotten in the middle of the night for any good reason.
Luckily there is a setting that fixes this and is optional. So if you still control your hue lights like a barbarian with the analog wall switch, you probably want to leave the setting alone. If you are tired of being blinded at 3 in the morning, you can stop.
You can access the new feature by tapping the Settings tab in the lower-right corner of the main screen, and then selecting "Behavior on power up."
When all the "Emergency Supported, you must first perform a software update (also in the Settings menu). Otherwise, tap a light bulb to change the turn-on behavior.
You have two options: "Philips Hue Default" (Philips Hue default), which means the lights will flash when power is interrupted and restored and then "Power Loss Recovery" will turn the light bulb back to its last used state is lost before it loses power.
Source: Philips Hue about 9to5Mac