Not to toot my own reviews, but the DL40 is hella nice.
Uses a quad of LH351Ds, which are nice big chips to begin with (so a naturally wide hotspot and generally floodier), but 4 of ‘em as well. Great CT/tint, hardly any angular tint-shift, really nice quality light. Big honkin’ thing, bright as Hell, lots and lots of runtime.
Simple UI (L/M/H), hard to screw up.
Includes cells, 2-bay charger, everything you need to drop in the water and start shining at things.