Measuring light in tent during dark period

I have a Wyze Cam v2 in my veg tent but I am going through some reno's on my flower room and I have a DWC plant that is outgrowing my space as well as its bucket. Is it safe to say that if the cam is not picking up any light during lights off, then it's dark enough for the plants? It's a cheap ass 5x5 and I know I have light leaks at least through the zipper that I can see when the lights are on.

Climb in there with the light off close the zip if you can see you hand in front of your face then theres too much light (or so they say). If you go outside at night its not always pitch black & plants in bud out there manage to stay in flower.

A lot of light might get out but take into mind how many watts are pumping inside there and the odds of you having that much light shining on your tent during lights off
I got 3 cheap ass tents I can see light coming out of all of em but other than my 1st grow I haven’t seen any hermies

Only way to be sure you have no light leaks in a new setup is to turn on all the lights you can outside the tent, then crawl inside.

Thats how i check every tent,crawl inside lights off,wait a minute or two to let your eyes adjust and as said if you can see anything get the tape lol.

Thanks folks, you all were right. I zipped myself in the tent and discovered there was some light that wasn't being picked up by the Wyze cam.