As you probably know, 'lumens' is a measure of the total light output from the light, not how intense the light is. To know how intense or bright a light is, you need to know both the lumens and the area over which the lumens are being spread. So if you have two lights that are both 100 lumens, but one light has a beam that is 2x as wide, then that beam will also be half as bright. So it's always a trade off between a narrower but brighter beam, or a wider but less bright beam. A narrow beam is good for spotting things far off, but not that useful when doing camp chores and vice versa.
Zebralights in general are quite 'floody' lights, which means that the lumens are really spread around, thus making the light appear less intense then you'd expect. Until recently, I had both a Princeton Apex and the Zebralight H51. The H51 is rated much higher (200 lumens vs. 130 lumens) but I could see significantly further with the Apex, because nearly all of the 130 lumens are used in the fairly narrow beam, whereas the Zebralight uses most of it's 200 lumens for the 80 degree flood, and maybe only 70-100 lumens are actually used in the center beam or 'hot spot'.
With the Zebralight H501, there is no hot spot at all. The 96 lumens are evenly spread out over a big 80 degree flood, which means in any one direction you're not going to be able to see that far. This kind of light is great for camp chores, but not so great for seeing far. I speculate that a 20-30 lumen light that utilizes 80% of that in a beam, could probably shine about the same distance as the 96 lumen H501. This is quite speculative, but hopefully you understand my main point which is that the H501 really spreads the light around so it's not as intense as you probably imagine 96 lumens being.
This is why I like the H51. You get basically all the flood light that the H501 provides, plus a nice brighter spot in the middle for times when you want to see further.