What kind of blacklight do I use when I go hunting?

Any UV blacklight can be used as long at it is 395nm. Some UV flashlights are 365nm which can misidentify a lot of glass as uranium because it makes manganese glow brighter. I cannot stress enough that only 395nm blacklights should be used for identification of uranium glass.

I personally love this one because it's compact, well-made, powerful, and rechargeable

https://a.co/d/3mU3oqY

Identification of uranium glass at the Kirkland Museum of Fine & Decorative Arts in Denver using a handheld blacklight