In order for wireless cameras to be able to see in the dark, the camera desires to work with an infra red unit. Infra red is a unit that requires no light at all to be well placed to see in the dark. This is possible thanks to the undeniable fact that it works on a light wavelength spectrum that's not the same as that of human eyes.
You might even have heard of Lumens ratings when it comes to photography. Lumens ratings are a technique to measure how bright a projector bulb is. In most cases, lumens ratings go from 650 to 5000 lumens. You will have to take account of whether a projector is used to capture full motion videos, or if it is just static data.
Since lumens ratings are used more in measuring projector lightness, LUX ratings are used more frequently to gauge camera lightness. LUX is used to measure how sensitive a camera is to light. LUX represents one tenth of a foot-candle of light and this is the standard used internationally. If you hear people announcing that a focus has ten thousand foot candles of light, you may be sure that the picture taken will be exceptionally bright.
Nevertheless you'll have to keep under consideration that when choosing trustworthy wireless cameras for security, you want to choose one that's got a LUX number as low as practical. A camera that comes with a low LUX number means the camera can see rather well in the dark or very dimly lit areas. With that said, if you manage somehow to get a camera with a LUX number of 0.05, you may be sure that this camera will have better vision than your eyes at night.
You'll presume that wireless cameras of this kind will cost big bucks ; this could be partially right and partly wrong. It will rely on what type of camera you select. You can get quite good quality wireless cameras with acceptable night vision with a budget of $100. In other cases, if you are ready to spend a little more money for a lot higher quality product, you may want to spend up to $400.
Obviously, the wireless cameras that are offered for sale with higher price-tags generally indicate that the cameras have more features. They also come with higher build quality. So, the more dear cameras are still worth considering if you have need for the most pro wireless cameras with night vision.