Thank you for the info... I was working my way through a new build and I have the host rifle and optics I'm going to roll with, my next step is a light and just didn't know if I should get the dual (SF Vampire) or straight white light. I will take your advice and do some more research... Am I missing something, why are the SF Vampires so low output on the white light side? Is it because it uses the same bulb (led) for IR?