Hello I purchased 4 Olight h2r cool white headlamps and I have tried emailing Olight with my issues. 3 of the lights will not shut off. They stay on less than the moonlight mode even when shut off. If I do a battery pull and reinstall it is always on. The 4th light shuts off on its own. Is there something I am missing. I have had no response from Olight. Very discouraged and looking for some help. Thanks