beam of light caught on camera it took out power and made a sound

https://youtu.be/Qm_2zaSZljs
at 3:57am and exactly 15 seconds a ufo projects some kind of search beam and you hear the beam it makes when it hits the security camera so TURN UP the volume.... please turn up the volume! loud you can hear myself or my partner snoring a second before the power goes out
is there any other explanation for what was caught on tape?
in short, power goes out,my emergency light comes on which is red and can be seen in every frame after the power goes out .. a search beam outside my home and it appears the brightest point or spot was outside my bedroom window! nobody bloody elses
can anyone give an explanation of a human source? I uploaded all the video to youtube and I have the raw video from Xiaomi 360 cam I copied...
on battery backup is the camera (ir filter is turned off as you can't see crap with it on) 1 google mini and an emergency red light that is visible in every frame after the power out (black out)
also I felt tired for 5 days and all my smart devices all have the same strange fault!
please this is driving me slowly mad..... nobody responds to my emails! I'm desperate for answers....