The above position is to use the 6mm to monitor the camera lens or the 8mm lens is suitable
The infrared effect is the same as the large size and the size of the infrared light. The bigger the red light is, the more the picture is clear.
It is recommended that you use 8mm, but it may not be as wide as 10m, so add two more
With 6 mm wide, this distance, with 6 mm is suitable for, 420 line and 480 line is a little difference, 480 is clear, but the definition and the relationship between the host, the largest and protective cover, is better, nanjing ZhiYu technology to do a lot of cases
