I've been following the forums for a while now, and have noticed a peculiar addiction amongst the lumen junkies. Caught a bit of it myself, and ordered an Arclite. Very impressed. I've never seen an led with such an output.

However, most of the lights that are currently in my kit are either AA or AAA Maglites. Tough, dependable, and batteries are readily available.

My issue regarding the techno lights focuses on run times and battery availability. In a kit, how many different battery types are you going to pack? I can see the wisdom in packing lithium, due to shelf-life. But having to pack exotic batteries that will not power any other bit of kit seems foolish. To my way of thinking, similarity of battery type throughout ones gear (flashlight, SW radio, GPS, etc.) would be a goal to strive for.