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The VARIO i4 series represents class leading Infra-Red (IR) illumination designed for all CCTV installations. VARIO illuminators combine the latest advances in optics, remote control, electronic feedback and green technology into an outstanding all-round package. The unique VARIO beam pattern system is the latest development in interchangeable holographic optics and allows users to precisely match the angle of illumination to the required field of view. VARIO lenses use hot-spot reduction technology (HRT) to produce images far better than those possible with normal LED illuminators. The HRT system delivers a highly diffused elliptical beam shape to deliver light directly to where it is most needed, allowing greater illumination distances, reducing light and energy wastage and preventing the overexposure of foreground objects.