Hue light triggering a routine when turned on by a normal light switch?

I’m afraid the simple thing you’re missing is that these bulbs are designed to be on power over all the time. If you put them on a regular light switch, the inrush current each time the switch is turned on will likely damage the bulb over time, making an expensive light bulb that much more expensive. So the manufacturers tell you not to do it, and most people choose not to. It’s OK if there’s an occasional power outage, say two or three times a year, but it’s not something you want to do every day. But obviously it’s your choice.

The next issue is that for exactly this reason, many zigbee bulbs, including Hue, do not send a message to the bridge when they are first turned on after a power loss. The assumption is that that isn’t likely to happen anyway, and the bridge will pick it up in the next “heartbeat” check which would typically be every minute or so.

There are a couple of alternatives for what you were trying to do.

Option 1: A battery powered smart switch cover

The first is to use any of a number of devices which can work in a place where you don’t have a neutral wire for a switch. The device choices do vary somewhat depending on the region that you are in. But there are a couple of “smart switch covers” which fit over your existing switches and run off of batteries. So no wiring required for those. Some leave the switch underneath in its current position, so people use those With smart bulbs so that the power does always stay on to the bulb but you still have a physical switch. Other models physically move the switch underneath, so they would be used with dumb bulbs. Either kind can be used standalone instead.

You can find a full list of these in the buttons FAQ. Each entry list whether it is for the US or the UK and whether it is battery powered or mains powered, so read the entries carefully to make sure you’re getting what you want.

Option 2: A smart switch which does not require a neutral

If you do want a mains powered switch which doesn’t require a neutral, the the Lutron caseta line in the US or the lightwave RF generation 2 in the UK are both possibilities. The Lutron has an official SmartThings integration which works well. For lightwave RF you will have to use IFTTT as well.

Option 3: a “canary” bulb

If you decide you’re OK with burning out your bulb sooner, there is a community member who has created a smart app which will recognize the “power restored” message from certain specific brands of bulbs and use that to trigger other events. in that person’s case, it was only intended to be used during an unexpected power outage/restore, and the purpose was to turn off all of the other smart bulbs which it come on at full power because of the power outage. But you could use it in the use case you’ve described, but not with Hue brand bulb and at the cost of burning out the bulb sooner.

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