It's no good. Can't get the E20 to focus right with the acrylic lens.
It might be the flashlight, you mentioned in another thread you are having problems with it.
Try taking off the head and using the bare LED with the lens. Try to find the focal point. Maybe the lens isn't going down far enough.
No, it's not that, I can't get it to focus until I see a strong/squarish hot spot.
A good focus does not mean the best throw, I get the best throw with a off focus hot spot.
Go outside and play with the lens on a object 200 -300 feet away