How to make light look like JJ Abrams
I want to make some sci fi scene
Do you mean the aggressive lens flares?
If so than you should have a look at Post Processing Effects. Klick me.
Combination of Lens Flare, Bloom and Dirt Mask should do the trick.
Make a new actor based on a light class, add a billboard component, then apply this image to the billboard.
Made my day.
You have won the internet today 
Ok, I laughed xD