What's worng with my ue4

I’m a Chinese high school student,I can’t speak English very well.
As the title,in my new map ,I find it’s too hard to biuld my light.Please look the picture,what’s the matter?Is the light too close?I need them keep this distance!What shold I do?

you can’t have more than four stationary lights affecting the same thing.
4 lights = ok
5 lights = move one of them away.

make some of them static if you only want to have baked lighting
make some of them movable if they only affect a small area
make their radius lower so they dont overlap as much.

Shadow casting stationary lights.