Originally Posted by Ringodoggie
To answer the OP's original question... certain frequencies of IR light are not detectable to the plants and will not affect the photoperiod. I don't know what your night vision glasses give off but if you have the specs on your glasses, it might give you an answer.
You'll have to Google it to make sure but I believe anything over 700 nm will not be detected by the plants.
Everyone went off on a tangent on me. I never said that this would be my general practice for growing. Had a situation come up and was just looking for some info.
I never even went in the room 🤷🏽*♂️