Tapping smoke detector for new lights/switch

[Patkura]

Electrician we are hiring to install new LED potlights on second floor suggests tapping into the smoke detector circuit for power (accessing from attic). Yes potlights will be 9v each and we will install 4 to 6 of them and a new switch will be fished and added from attic.

Any issues with this plan?

Thanks in advance!

[GregS]

I don't understand what you mean by potlights 9v each?

[GregS]

Also if this is a licensed electrical contractor who has a permit then it should pass inspection without issue.

[Patkura]

I mean they are low voltage, possibly 9watt?

Is there a public resource somewhere I can check for licenses? Website indicates he’s a master electrician.

[GregS]

https://findacontractor.esasafe.com/

[suezuki650]

Recently I had to change out a couple of defective smoke detectors. They are interconnected hardwired detectors and one of the documents I read said they needed to be on their own circuit but I discovered that my basement lights were on the same circuit. I contacted the manufacturer for clarification and they said that yes all the detectors should be on the same circuit but that it was also good to have lights on the same circuit as that way you know you have power to them and that the breaker hasn't switched them off.

I don't know if all brands are the same, mine are first alert.