Replying to Tips for urban lighting at night

So let me first start off by saying that i have a t3i so im not expecting super good results for night shots.

So around my town theres some sick urban spots but there infront of buisnesses and are only hit able at night. I do have a generator and some halogen work lights but they dont seem to work that well. the light isnt spread out like i need it to be so there are lots of shadows. are there any contraptions i can build at home to spread the light out? and also are Led lights better, the white light seems to be better than the yellow light if that makes any sense. any tips u guys have would be great as i am new to filming.