LED fixture recommendation

[Billm302]

I am in the process of restructuring my seed starting fixtures. I currently use T5 HO 48” fixtures for all shelves. I need to set up a new area for my larger seedlings, mainly tomatoes in 4” pots.

I want to start changing over to LED lights. The areas I have identified are 2’ x 4’ shelves. I could mount the new fixture(s) up to 48” above the next lower SHELF.

I have read the threads about LED lights but am more confused than enlightened. My first crack at a plan is to convert 4’ Fluor fixtures to use LED bulbs. But then I thought I should look into other LED fixtures since I have to purchase new fixtures either way.

So what I am looking for is specific fixture/bulb recommendations for how to best cover areas configured 2’ x 4’.

Thanks in advance for any and all thoughts.