Conclusion: Runtime completed with " Titanium " brand batteries. More information on runtime plots is available HERE . When the batteries become very depleted in this light the beam turns very orange, the LEDs stop functioning (unless specifically selected) and the incandescent bulb blinks on and off. Switch: The switch is a rubber capped clickie. Press gently for momentary use, press until it clicks for constant on.
Pros: Water resistant, Very bright, Able to switch to LED only mode for battery conservation