It has a step down driver and a pwm mode controller.
The Mag can run with 2-4 lithium cells in series.
Modes are low,medium and high.
The switch cap is made of transparent silicone and there are two blue leds underneath. When the modes are changed the switch cap will light up in blue. I will include the original black cap so that if you don't like it you can replace the silicone cap.
Furthermore it has an ultraclear lens and an aluminium reflector.
The LED is from photonfanatic and has the CSXOI bin.
The Mag is not new so therefore it has one little scratch at the end of the body. Besides there is a small logo located at the bottom end of the body.