Finally SureFire has made a E1D. In the past, flashlight users had to Lego together the components. Taking a E2D bezel and tail cap and putting them onto a single cell E1 body.  Below are two iterations that I have made. But this requires buying two separate lights just to make one.

The new E1D LED or E1DL has a blinding 300 lumens out of a single CR123 battery. It is the brightest single cell light that SureFire has brought out to date.