Can I have side lights as well as top lights?

Is it okay to have some lights up high on the sides if I have some on top as well? Here's a picture my 3rd setup that I just started on. So, far, I just have the lights up... Tell me what you think... Oh, there's room for 5 lights... 2 on left... 2 on right... 1 on top... The left and right lights are high up,like I said.

Lights work even like this:

Yours would obviously be fine...

yeah youll be fine it might even help the plants in flowering get bulkier