Thanks for all the replies folks. They are appreciated! Because I thought this was deviating too much from the original question, I posted a separate topic where I ask about black lights:
It was only ~$10 so I figured I’d play with one. By the way, @Jamon8 , I do have a jewlers loop with 30x and 60x magnification. I still have trouble seeing when trichomes are ready because I have color problems (which might also be a problem in using a black light!).