I've got a Surefire and Streamlight flashlight. They do not perform as some of the other lights out there. fenix, FourSeven, Olight, Sunwayman, Jetbeam, Thrunite, and Klarus produce better flashlights for much less. I recently bought a Klarus ST20 for $42.00 shipped. It's the size of a Maglite 2AA. It produces 240 lumens on high mode running on 2AA batteries for 1.7 hours. It also has medium, low, super low(200 hours at 2 lumens), SOS, strobe, and beacon modes. This flashlight is brighter than my Maglite 3 D cell LED light which is only rated at 134 lumens. It's also waterproof to IPX-8 standard which is over 1 meter for more than 30 minutes underwater. This light performs way better than my Surefire G2Z or my Streamlight Stinger.