Bps can see infrared lights the same way they see normal lights. For a lamp-type heat source, I use a ceramic heat emitter (mine is a 60 watt for a 20 gallon glass terrarium with a screen top that I half cover with a towel) and I’m able to keep it on 24/7; it stays around 80-90° In the warm side. Originally I’d gotten a 100 watt emitter, but it got way too hot when I tested it before putting my young BP Cleo in there. Reached about 110° within half an hour. I have small LED lights that have a little switch on them, but I have my enclosure in a place where natural lighting reaches easily so I just typically leave the LEDs off. A CH emitter is much netter, doesn’t cost that much compared to bulbs, and they’ll last insanely long in comparison. (saving even more money!)

basically, getting a CHE is worth it in my opinion.