Why is Waterproof IR IP Camera flicker? When the light intensity below the threshold, the infrared light on luminescence. Higher than the threshold value is off. We consider, lighting intensity is slightly lower than the threshold of the case: photosensitive element detects light intensity is slightly lower than the threshold value, control IR LED on LED - light emitting infrared light, the detected illumination increase (with a reverse back infrared light), and exceeded the threshold value, control infrared light off of the probe to reduce the illumination once again control the infrared lamp is turned on. This back and forth constantly, causing the image flicker. This happens, is the principle reason, do not say it is normal, at least not the product quality. First, the extended the IR waterproof Ip camera use infrared light time, affecting the life of the product; Second, the situation can produce color images on the infrared light will cause the image quality down time; Third, the color image to generate infrared eye (infrared eye is determined by the principle that people want to see the phenomenon). Low threshold, there may need to add lighting at the time, infrared light can not be open in time. The IR waterproof ip camera is now common, the general environment in which the photosensitive element to detect the light intensity, according to the design parameters identified in the threshold to produce control signals for infrared light is turned on. Threshold level, by the use of the environment, the user's preferences, designers consider various factors, the importance of the different manufacturers of various products is not the same. If 20,10,5 Lux. And so on. Threshold is high time to open earlier, the camera may not be the conversion of color to black and white, infrared light to open up. These three areas will be negative.