Cube is too big (200 m) ... I would highly suggest to you - scale it down to get more natural dimension for this thing. You avoid a lot of other issues, like Camera clipping (that you are facing with already) etc.
Green Light - your Spot light is like a bulb light with power set to 100 W now, that is still too low to be able light surface so far (300 m). I had to set 100.000 W to get some effect. If you switch this light to Sun type (under properties) you can see light is lightning.
For quick fix
- switch Transform Pivot Point in top header of 3Dview editor to type Cursor
Like that you get a Cube 2 m, that is probably still too much for such thing, but you can already see lights affecting cube's surface. Here Green light set to 1000 W.
Anyway I see you have quite a lot of other strong lights. Would be helpful to turn all lights off (in Outliner (Eye icon)) and turn ON one by one to see how they work and affects your scene, some of them are not probably needed.