Used with night vision equipment and infrared (IR)-sensitive CCTV cameras or digital cameras for covert operation. A clip-on infrared filter provides semi-concealment blackout conditions yet allows IR to pass, producing a powerful, long-range night-vision beam. The IR filter works by suppressing 99.96% of visible light yet allows the IR irradiance to pass using suitable night vision equipment or a camera equipped with an IR CCD receptor. The system allows covert use of high-powered spotlights with a close-to-undetectable light pattern. Night vision devices using IR illumination allow people or animals to be observed without detection.