UVA (soft UV/black light) - harmful or not?

[Jitt]

Have maybe a bit odd question ... sorry about that beforehand, still a newbie here, lol

I found tons of informations here about corns NOT NEEDING UVA/UVB lights for their setups and have no problem with understanding that. What concerns me though is, I want to set up a camera for 24/7 watching of my viv ... have installed LED RGB stripe in the viv but my little (3,5 months) corn seems to know when I set up the red (DIMMED to almost minimum light) out and when not (light is completely out), successfully avoiding getting out while "lights" are on

So I thought about setting up UVA bulb instead as it "lights" the area enough for cam to catch the picture, but doesn't give any "light" that would be perceived by naked eye (barely any visible light). My point is ... won't that harm my snake if I will be using this UVA bulb for night monitoring? Don't wanna mess his inner clock of course or otherwise harm him od course. If it helps, he's bloodred (no hypo, no albino).

Thank you for any advices Maybe he's just shy but to me he seems to be most of everything damn smart

 

[Jitt]

Consequently it leads me to another light-related question ... should I let the red LED light keep going on through the night (dimmed of course) or switch it on only when I want to observe my little critter?

Point is ... if I'm right and will keep it shining, he will take it more easily as a "natural setup" rather than having it switched on and off randomly (which might disturb him rather). Definitely he can tell when I switch the lights on and off cause I've seen him go as far as to try and outstretch towards the LED stripe many times (pretty sure he wouldn't do it while no lights).

I use ceramic heater to keep the viv on par with temps which switches off at night to provide light dropdown, never less than 20°C (usually stays up around 21 through the night), no night heating going on.