Recomendación LED

Without CO2, you want about 1000 umol/s per m^2. maybe, push 1100. After that, you'll need CO2. so, ~2000umol/s produced by X number of lights would work well. Get really good immersion from side as well as directly facing the light source. you buy what fits the area you need.. e.g. the sf 1000 could by x16, lol.. 4 per m^2. you can likely do much better with larger fixtures and cost effectiveness, of course.. just saying it's more about matching footprint of light to space. Those new zeus somethiern or others.. maybe 4 600w would be good. their efficacy is abotu 2.4umol/s*J^-1. You can push 2.7-3.0 with better diodes right now and not need any active heat dissipation, although running it room temperature is cool. Find stuff with Samsung LM301B diode (H just costs more, same thing) with 4:100 type ratio of a handful of 660red diodes too. This is basically as good as you are going to get with LED at this moment in time. Compare prices and select.

Do your research. Migro have great reviews on many leds out there. You can find them in YouTube... get the best you can afford. However I've seen a few amazing budget models. Spider farmer are very good for the money. Good efficiency too. Lumatek Zues has one of the best for efficiency. All lights will give you the details of the space covered. 2x2 is a large space so I would imagine 2 panels would be needed. Happy growing ✌️