I stopped by my favorite local shop today and they still had that Surefire E2d Led Ultra for sale. I have an older E2d Led (120 lumens) I bought years ago. I'm happy with it, but 500 lumens out of a Surefire hand held light is very alluring. So I bought it today and have been playing around with it. It really is bright. Yes I do notice a green tint on a white wall, but it doesn't bother me that much. I don't hear a buzzing as others on this forum have mentioned. I'll post a picture here when I figure out how to.