Adobe Illustrator Lighting Effect Question

[Elaina38364268ibve]

Hi, I am trying to create an underwater lighting effect on the back of a boat. I currently have the red circle gradient but the edges of the triangle aren't as soft as I'd like. Is there way to make the sides of this smoother?

[Monika Gause]

What you can do is crete the gradient from red 100% opacity to red 0% opacity.

[Elaina38364268ibve]

Is this what you mean? I have this on already. 

 

[Monika Gause]

You have white set to opacity 0%

You will get a very different result when you have red set to opacity 0%