1.The working enovironment, especially froggy, hummid or dusty environment,will greatly reduce the radiation range of infrared illuminator. The radiation range described on the advertisement is tested in lab where might vary from the real-life situation.
2.Suggest to power the IR illuminator seperately without extension cord ，to make sure to gets adequate power to work properly;
3.Make sure to use IR sensitive camera with IR illuminator.The sensibility of diffent camera is vaired. The lower mini.illumination of the camera, the better/longer radiation range of infrared illuminator;
4.To test the illuminator in pitch-black environment will help increase the credibility of test result.