I have never handled a HL-55, but if it is a Fenix, that's good news right there. It does appear to be a bit on the bulky side, and it is not lightweight.

A lot depends upon what characteristics you value in a "survival" light and its contemplated uses. "Survival" is just a marketing buzz-word, like "tactical" or "gluten free." At least the HL-55 is made of "all natural ingredients" -no added kryptonite!

The 18650/CR123 battery mode is interesting. I will be buying more 18650 powered lights in the future, probably starting with the ZL-602 - a lot of juice in a small package

My opinion is that the HL-55 would serve quite well. It is by no means unique in that respect....