I've had my newbeam for 4 days now. Overall, I'm very impressed- as are the guys at work. I found an interesting quirk though. If I turn the head counter-clock just slightly, the red LED illuminates along w/ the other 3 LEDs. Turning the head further the red LED is off & others are much brighter. I checked each batt voltage & 1.45vdc. Is my module not seated fully, or have others found this same quirk? At what voltage is the red LED designed to illuminate?