You know that is a great question the only problem with answering that is i have asked the companies that make the camera if they know the light color or at least the part number or maker for them and they are clueless have never had that question before they tell me i would have to back track all the way down the chain of command all the way back to the manufacturer of the bulbs themselves to get an answer
Unfortunately IR is 850nm and up.. Not sure how much the plant absorbs of it. It's pretty far up the NM scale. None the less.. Some folks have done testing with IR for night time 'critical darkness' manipulation. I just never heard the results. Sorry.
Some strains are hard to get into full bloom even with FR 730 nm 'critical darkness' manipulation. Especially if blue light is present past the 12 hour mark.
Blue light is a veg trigger.
It's much easier to manipulate the 'critical darkness' if no BLUE light is present past the 12hr mark.
Lets use outdoors as an example..
Outdoor uses FR to manipulate the 'critical darkness' BUT mother nature also removes blue light. How you ask? By tilting the earth away from the sun. The more the earth tilts away from the sun.. The less BLUE light the plants receive. Both blue light intensity and duration are affected by earth's tilt.
So yes outdoors can flower most strains under a 14/10 flowering schedule BUT it takes the combination of both things to make it work correctly.
Back to your situation.
Not sure what's going on with the IR camera.. But strange looking flowers can only mean one of two things.. Either the 12hrs of 'critical darkness' wasn't being met or there was BLUE light contamination during the 12hrs of dark time..