Ok, as most of you know I'm not too informed when it comes to Lighting. I'm working on it, I swear ......question is.......I use a Sigma EF 500 Flash and I am looking for something that might give off more light and work a further distance then mine does.

I need to keep the cost under $200. Do you have any suggestions.

My flash works pretty well but it doesn't power off enough light during distance shots. I have 2 upcoming events that I will be doing for work which involve low light and me taking the photos from a distances.