I have been planning to build a small grow box for seed starting and early veg. I was initially thinking of using plywood, but am starting to consider 1” foam insulation instead. My dimensions will be around 32”L x 20”W x 24”H. I have been considering between using my old vipar 136 watt burple or 6 or 7 screw in Led bulbs at 60ish watts. I’m really leaning towards the screw in bulbs because I can get more even coverage and should hopefully have less concern ls about light burn on my plants.