To increase the lowlight performance and range of a true day/night camera used with an IR light you need to evaluate each system component and how they complement each other. The lens is a very important component as is the output power of the IR illuminator. If you need long-range performance, increasing the IR output power alone will not be sufficient; an appropriate lens will have to be used and vice-versa. Also, keep in mind that light output power verses range is governed by the “inverse square law”. The law simply states; to double the range, the output power must be increased four times. If you want the range to triple, output power needs to be boosted nine times. It’s important to note that higher megapixel cameras require more light.