Pelican give much info about their flashlights. Check out the spes. table on the European homepage. Too bad it's not updated. As far as i know the L1 is now ATEX approved. I don't know which of these models are considered "good"? I have heard that The Super Sabrelite and Black Knight Alkaline M10 are great and perhaps winners in their class. However, i miss the adjustable focus!
http://www.peli.com/lights4.html
http://www.peli.com/lights4.html