Have you looked at the AE LifeLight 65™ supposed to be 1000 lumens and good to 200 meters. I have the smaller AE LifeLight supposed to be 270 lumems good to 200 meters. It's pretty bright. I wish there was some way to actually find out what the output really is. I've been down to 35 meters with it and it worked fine.
As an Amazon Associate we earn from qualifying purchases. Product prices and availability are accurate as of the date/time indicated and are subject to change.