Hey all total newb here have a question about my soon to be set up I'm starting with a 24" ×48"×60" tent and purchased a viparspectra 450 watt reflector LED I have autoflower WW seeds should I use 3 or 2 in my small tent? Thx much any advice would be appreciated
Use one to start with. Germniate it and put it 1/2 inch into the soil in the pot you're going to grow in (hopefully you've got at least a 3 gallon pot. 5 would be better.) Transplanting is for volume growers, not you. Never, ever transplant a personal use grow. You have absolutely no reason to.
That Viparspectra is a decent light, but it's not very intense. Especially since you're a full-blown beginner, I'd start with just one plant. Trust me, if you do it properly and let the plant do most of the work itself, you'll be surprised how large and how much bud a single WW will give.
Top it twice, then leave it alone and go easy on the nutrients. With that light, 3.5 to 4 ounces should be quite easy to achieve.