Cloud Defensive continues to improve their Optimized Weapon Light (OWL). They have given us a sneak peek of the production version that will be 1.2” shorter and 4 oz lighter than the prototype that has already been shown. It will also be powered by the now ubiquitous and potent 18650 rechargeable battery (with no CR123 battery option). Outputs and runtimes are still being tweaked but you can expect somewhere north of 1400 lumens with very impressive runtimes.
You can read up on the OWL at CloudDefensive.com. Keep in mind that this is a developing project and stats are likely to change (improve).