i am sorry bad this cam is NOT REAL 4MP quality, i have same Harex camera 2MP, and when i conencted this two cameras 2MP and 4MP in parralel view, was no differents! both cam have same little bit "blured" effects for objects in more that 2 meters... yes, 4MP give 4k resolutions but it is just electronic, not optical effect! (both cam was on "best quality").... so, if no differents at all, then why to pay more?? for programming double pixeling + blure effect?