SureFire E2e:
Produced by Surefire

The SureFire E2e is the smallest 2x123A cell flashlight available.
There are 2 lamp assemblies available for the E2 & E2e:
MN02 25 lumens for 150 minutes of battery life. (comes with E2O & available separately)
MN03 60 lumens for 75 minutes of battery life. (comes with E2 & E2e)
 

The SureFire E2e comes with 2 SureFire (SF123A) Lithium batteries and a 60 lumen lamp.
SureFire products are very high quality and come with a Lifetime "If it breaks, we fix it" warranty.
This model is the Hard Anodized (Type III) version.  A satin grey finish version is also available.
It has a removable belt clip attached to the body to make it easy to carry.
The E2e has a push button momentary switch.  For constant "on" twist the tail cap.
The E2e in just over 4 1/2" in length and 13/16" in diameter and 1" at the bezel.
Battery life is rated at 75 minutes with the included 60 lumen (MN03) lamp assembly.
 

The KL1 LED bezel is optional & produces 17 lumens for 4.5 hours of battery life on the E2.
Shown above are the E2 (w/KL1) and E1.  They are the older versions of the current E2e
and E1e (elite).  The advantages of the newer version are pyrex lens,
greater water resistance & the hex shape keeps it from rolling away when you set it down.
 

The KL4 LED bezel also fits the E2e body.  The E2e body is the same as the L4 body.
 
 

This is the Brinkmann Legend LX and Surefire E2 side by side about 2 feet from the ceiling.
With fresh batteries in each one, the Legend LX is brighter, but not too much brighter.
 
 

This is a comparison shot between the E2 (w/E2e bezel) with MN02 @ 25 lumens
and the E2 (w/E2e bezel) with the MN03 @ 60 lumens.
 

This is a comparison shot between the E2 (w/E2e bezel) with MN02 @ 25 lumens
and the E1e with the MN01 @ 15 lumens.
 
 

You can see here that the E2 (older style shown) is very compact, it is the brightest flashlight that I know of
in it's size category.  It's small size makes it very easy to carry with you at all times.