future 1, best light in a 2x4' tent

I also grow in a 2x4 and I started using the "normal" SpiderFarmer and Vivosun LEDs with 200w which are great for a amateur (also bc you can get these very cheap and even cheaper 2nd hand). But I soon realised that they are a bit on the weaker side for 8sq foot and so I upgraded to a SANlight EVO 5 - 100 (340w). Just remember you can always run a bigger light lower, the other way arround is more difficult.