I bought one for work (construction, primarily in ceilings), and bought two others for work mates. I love the brightness and throw, but sometimes when it's bumped, it flickers. Is there a fix for this, or should I just expect this from this light and live with it? I thought maybe because of the charger being "onboard", maybe it makes the light more fragile or sensitive than the other lights I own. (love the Eagletac D25LC2) Thanks-