hello. Since i have installed 4 of the cameras as per the title, i have noticed that they have trouble in motion detection during night time. I don't want to have the white light on all the time, so i have set it to go on only when motion is detected. And this rarely happens due to the issue mentioned before. My question is whether the camera can "see" IR light in order to be combined with external IR emitters, since it doesn't have such light integrated