The E1B was tested by Precisionworks when it first came out. 113 lumens for the first gen, if they upgraded the emitter then we'd be looking at ~140 lumens for the upgraded version. The question remains, did they adjust their lumen figures or upgrade the emitter.
https://www.candlepowerforums.com/posts/2572733&postcount=1
I went for an E1L with the thought that the 45 lumen high was probably a bit underrated, and liked the 4- 4.5 hour runtime before regulation dropped off.
Turns out, in a ceiling bounce test, the output is indistinguishable from my NovaTac 85 T on 85 lumens.
So, I saw little point in getting an E1B rated at 80 lumens. Even assuming it's a bit more (and it appears to be indeed a bit more), I'm not sure that the differnce between 113 vs. 80 or 85 or whatever is actually coming out of my E1L is noticeable, or even if it is, whether there is any practical difference in the output. Several other members have posted observing that their E1Ls were just about, if not as bright as, their E1Bs.
But, if there actually has been an emitter upgrade, and the E1B is now putting out 140 or 150 lumens, that would be noticeable, and might be worth considering. So I'm eagerly awaiting the definitive word on whether the latest E1B has a different emitter with a higher lumen rating, and what the actual torch lumens of the latest E1B are.