I have an FCe-4800 in the Mars 4x4. I definitely like it. It is only my first run with this particular setup but the light fits very well inside the tent. There is enough room to position the light and a fan/filter where you want to along one of the walls. It does not touch all 4 walls so you have room to work.
I think the way they laid out the wiring is very easy to connect but looks "cheap." The focus is definitely on getting you a powerful LED lamp for your money. It's a long harness with easy push connectors. They simply aren't hidden inside an assembly or channel in the frame. Also you can position all the light bars as you see fit. There are thumbscrew/wingnut adjusters on mine. I think it's a nice feature but some people may not like the fit/finish. Not knocking the design, just something to be aware of. Again, function over form.
The power cords are all a good length. The only short one is the dimmer to driver. I have the driver mounted outside the tent. The light came with everything you need but I would recommend upgrading the rope ratchets. They send a steel cable that links the two eyelets at the ends so you can use one rope ratchet per side. The included set works but seemed strained. The rope ratchets are those standard thin black cord versions. Totally fine but I bought 4 upgraded ones to control each corners height.
If you run the cable it is much easier to adjust as there is only one ratchet per side. With one at each corner you will gain a lot of height. Makes much more sense once you assemble and see how the steel cable/rope attaches. Do what you deem best.
Some pics:
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Steel cable to eyelet screw: There is an eyelet screw at each corner.
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Wiring harness to connect each LED bar:
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I bought these red/black rope ratchets off amazon.
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If you run the split steel cable this is the most height you can get. 52"
Hence, I would recommend the 4 corner rope ratchet setup so you can pull the light to the ceiling.
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