You are looking at everything in the right way - whatever you decide you will be fine !
"SunLite" is a brand umbrella for bike shops - and now that the eBike segment has grown - you can often fuind the same type tire tire you are looking at let's say originally Vee, Kendas, CST etc - - under the Sunlite brand - for less..
I bought Sunlite UtilIt SeaSide tires 20x3's last time - very decent tire for the momenty - for like $32 each - check modernbike.com - if I post a direct link someone might think I am tryiing to "sell:" something to you - it's just my "recommendation bro !