Motion lights & i/r triggers

[34Ford 0]

I wonder if there is anyway a person could use the ir trigger inside a ir flood light to trigger a dvr.

 

Im thinking the way these lights work is a relay to turn on the ac to the bulbs.

 

What Im getting at is why not trigger the dvr when the lights come on that way its much better than using the motion feature in the dvr in pitch black dark.

I may have to experiment with this.