If you can live with 300 lumens instead of 400, I can definitely recommend the Klarus XT1A model. Part of my EDC rotation. Fantastic light. Technically it's a 14500. But can take a AA battery. That 300 lumens on high is with a common AA alkaline (1000 lumens if you use a 14500).has to be aa i like to just go into any store grab a a cell.