Just took my Quark Mini 123 outside for a play and yes it is a great light indeed. Much brighter than the longer Photon AA and heaps brigher than the Photon Rex (which I love). The LED flickered a bit as it seems like you can accidentally fool the Quark into trying to decide what mode to go into therefore you have to firmly rotate the head in and out until you reach the mode desired. Great EDC light if it gives the run times advertised. As I am a power to size ratio freak the Quark Mini works well at 60mm long and lots of flawles semi wide/tight beam illumination.