Current reason, if your outdoor short distance, you can use the centralized power supply 12V, if it is long distance is not suitable 12V power supply; First, long-distance infrared light heat large 12V supply all built-in The cooling device is prone to burn out the current instability;

2, infrared light, poor quality, the angle of the infrared light and infrared distance with the lens does not match; many companies in order to facilitate the procurement and installation of a variety of angles, light mixed, so the benefits of using them the same kind of lights can barely use a variety of millimeter-sized lens, the downside is that always make people feel light angle and distance with the lens unsuitable, inappropriate angle, easy flashlight phenomenon or narrow electrical phenomenon; when the distance does not match, such as 12MM lens, but use 10 to 20 m of light, then you will gray the phenomenon;

3, the the handicraft problem: many people hand, the infrared light is not concentrated, astigmatism; lead to scattered light around bright, but a gray hazy phenomenon; cotton infrared light front-end file light tight, focused infrared red scattered light Therefore, a vast phenomenon

4 built-in is a poor camera, illumination high; to price competition, many manufacturers use a very poor camera built-in inside the camera infrared light make up the low light, is prone to snow phenomenon

5, circuit design, unreasonable; production of infrared cameras, not just infrared light mounted directly to the camera inside and then on the line, but fitted to its camera circuit re-design and aging treatment. Market, many small processing plants is to use low-cost electronic components buy cheap infrared light, the direct electric iron welding up to redesign the circuit is not there is no aging treatment;

6, another may be, if you are suitable dusty, especially in the field, there may be cameras, infrared light meat seeing less than the small particles shot down, the infrared light in the daytime is not open circumstances, within the eye and the camera feel obvious;

The solution:
High stability of the transformer
The use of high-quality infrared light
Replaced inside the poor camera. May be the camera of high illumination, the outdoor brightness is not high, prone to snow; black and white camera or color camera with color to black and white;
To replace all use of Star-level camera; If it is a little light, plus astigmatism infrared light infrared camera to solve the following points difficulty:
Infrared light to reset the circuit and aging; great importance to the manual problems, pay attention to the angle of the infrared light condenser; This requires the installation personnel have considerable responsibility and patience;
Built-in camera minimum 0.1 illumination, or prone to snow; requiring manufacturers to purchase the necessary inputs and seriously deal with the determination;
Remote cameras, infrared lights general power is relatively large, generally using the camera built-in 220V power supply of high-quality transformer and fan
To use high-quality infrared light, to eliminate the power of infrared light is too dazzling or whitening phenomenon; lead to the picture is not clear or dark gray sense; attention to the infrared light angle and distance at the same time, attention to their life;
To prevent astigmatism and excessive light gathering, astigmatism prone to vast expanse, and set light easy flashlight phenomenon.