I have purchased several Lorex Security systems and components in the past. However these cameras seem to be exeptionaly sensitive to the lighting in the rooms. These cameras go into night vision mode even in areas that are adequately lit to read by. Out of the 4 cameras only one works in the color mode due to this issue. There is also a very noticeable drop in signal if you use longer cable than they are shipped with. I am not as pleased with these cameras as I have been with other models.