Good thread
I own flash lighting outlets in my household. You can see that exact picture what I have in my house... See the red arrow of black figure stand - Alarm... "call us"...
It annoys me when my boys are upstair and we are downstair... They are too lazy to call us from upstair so they press the "Alarm" button to tell us to come up to them... They did it sometimes... They said to me that we did the same thing to call with our voice to them from upstair when they are downstair... It annoy them, too...

It make no difference... I told them that flash lighting for long 30 seconds everywhere in my house bothers me...
The light flashing continue for long 30 seconds when they press the Alarm button. Everyone will think we are

and play with flash camera everywhere in my house when they see continue flash lights from windows...

We made

for use emergency if I call them with voice as same as they press the alarm button... until we agreed Arrrrghhh...