I'lI have to look at HDS again. I haven't looked at them lately, but last time I did they were pretty low on lumens compared to Malkoff and more money. (And Malkoff is typically lower lumens than Surefire or the imports, but seem to hold their output longer in my limited experience.) I've got a few Olights, a Fenix, a Surefure, Streamlights, etc. They all have their place. The Olights are pretty well idiot proof with their magnetic charging and easy to figure out ui. They are nice, but the anodizing etc seems to hold up much better on the American made lights. Also, the Malkoff has a high/low switch which makes it pretty versatile.