This is the one I have in my 2x4 and my plants are doing awesome so far.
I have this light and am very happy with the light output per dollar. Be sure to look at ACTUAL wattage when searching LED lights btw This one is actually only 200W
Barrina LED Grow Light, Full Spectrum with IR, 4x4FT Coverage, Dimmable, Adjustable Light Panel with 720 LEDs, Hight PPFD, Plant Grow Light for Indoor Plants Seedling Growing Bloom Flowering Fruiting https://www.amazon.com/dp/B08VJ4X2QL/ref=cm_sw_r_cp_api_glt_fabc_BY7H0D59WN6JESEJ36G6
Forget the brands that are marketed towards weed, they mark up like crazy. I just grew 6 plants with this light and they all came out awesome.
I used two of these https://www.amazon.com/dp/B08VJ4X2QL?psc=1&ref=ppx_yo2_dt_b_product_details since I had 6 plants in one 4x4. Id say 3 plants would be the most you could grow with just one. Check my posts, they did great! I finished everything outside but thats due to the temperature and humidity in my unfinished garage being dangerously high.
I got almost everything on Amazon. https://www.amazon.com/dp/B08VJ4X2QL?psc=1&ref=ppx_yo2_dt_b_product_details
How are they easier? As you're looking, note beam angle and PPFD numbers with height. You cannot control the shape of the beam. It will always be a circle. At one foot high, circular coverage is 0.1 sq m. And you will lose some of that with a fully covered square target. At two feet, you could insure coverage of a circle of 0.41 sq m. A square that wold fit into that circle is about .33 sq m.
At two feet, they claim about 42 PPFD. To achieve a DLI of 14 in 13 hours would require a PPFD of 300, or at two feet, 7 lamps. And that would be just approximate, as mounting that many would be somewhat problematic.
Their PPFD is low because the beam width is not 60 degrees as implied by their diagram. They just showed you the effect within a 60-degree cone. It is actually much wider, so a lot of the light you are paying for with each 24 watts is falling outside the 60-degree field.
At any rate, that's $175 to provide light for a rather small area. Again, that's exactly because it is not controllable.
Compare to the Barrina at 200 watts:
https://www.amazon.com/Barrina-Spectrum-Coverage-Adjustable-Flowering/dp/B08VJ4X2QL
Look to the PPFD chart, which actually stops at 19" but gives us some idea that we wold be in good shape over the central area the size we imagined for the bulb. And the Barrina chart would have been optimized for the 4-foot on a side area by using it flat. I'm not entirely certain how much effect the folding wings have, but it will obviously bring the light to bear on a smaller area, thus higher PPFD at the edges.
Look at:
https://www.amazon.com/Barrina-Equivalent-Spectrum-Reflector-Greenhouse/dp/B07ZJLWXFR
Unlike the bulbs, the reflectors and low mounting let you put every bit of light on the growing area and an achievable 14 DLI at just above 12 inches for a two square foot growing area for $50. .
Since you know, or thin it likely that, you will end up with four, figure out if you would want then in a square or in a line. There are many four-foot bars. And I was recently introduced to this company. I like the designs, because wasting light you pay for off the sides is a real thing with many lights, and these seem to allow some control.
https://www.amazon.com/Barrina-Spectrum-Coverage-Adjustable-Flowering/dp/B08VJ4X2QL?ref_=ast_sto_dp
It is bigger than you need, but I think most us would report we ended up bigger than we expected.
This was another I liked.
[https://www.amazon.com/dp/B09CDBGN5D/\\](https://www.amazon.com/dp/B09CDBGN5D/\)
It's true that greater coverage may waste some light for a while, but it also means the light intensity is more even over the actual growing area.
Those are not as large as they appear, if you look down in the descriptions. So they should fit any tent you get. And are powerful enough that you can have some space above the plants, and that is always nice. If I were adding lights, I would likely try them.