
Dahua DH-HAC-B1A51P-U-IL 5MP Smart Dual Light HDCVI Fixed-Focal Bullet Camera
5MP Smart Dual Light HDCVI Bullet Camera with Built-in Microphone, 30m Illumination and IP67 Protection
Dahua DH-HAC-B1A51P-U-IL 5MP Smart Dual Light HDCVI Bullet Camera</h2> <p> The <strong>Dahua DH-HAC-B1A51P-U-IL</strong> is a 5MP Smart Dual Light HDCVI fixed-focal bullet camera designed for dependable security monitoring in homes, shops, offices, warehouses, entrances and outdoor areas. As part of Dahua's Cooper Series, it combines high-resolution imaging, intelligent dual illumination and flexible analog video compatibility in a cost-effective CCTV solution. </p> <p> The complete Dahua ordering model is <strong>DH-HAC-B1A51P-U-IL-A</strong>, specified as the PAL version. The camera supports 5MP 16:9 video output at up to 25fps and can work with compatible Dahua XVR systems for high-definition HDCVI surveillance. </p> <h3>5MP High-Resolution Surveillance</h3> <p> With 5MP resolution, the Dahua DH-HAC-B1A51P-U-IL provides detailed video for everyday security applications. The higher resolution is useful for monitoring entrances, storefronts, gates, parking areas, offices, homes and other locations where clearer surveillance footage is important. </p> <h3>Smart Dual Light Technology</h3> <p> One of the key advantages of this Dahua camera is <strong>Smart Dual Light</strong>. The camera can intelligently use its available illumination according to the surveillance scene. When compatible AI XVR functions detect a target in a configured rule area, the white light can activate to help capture clearer and more vivid images. When the target leaves the area, the camera can switch back to IR illumination, helping reduce unnecessary light pollution. </p> <h3>Up to 30m Illumination</h3> <p> The camera provides illumination up to <strong>30 meters</strong>, making it suitable for entrances, exterior walls, gates, small parking areas and other locations that require nighttime coverage. </p> <h3>Built-in Microphone</h3> <p> The <strong>built-in microphone</strong> adds audio capture to the surveillance setup. When used with compatible equipment, this allows video and audio evidence to be recorded through the CCTV system. </p> <h3>4-in-1 Video Compatibility</h3> <p> The Dahua DH-HAC-B1A51P-U-IL supports <strong>CVI, TVI, AHD and CVBS</strong> video output through a single BNC connection. This flexibility makes it a practical option for upgrading existing analog CCTV installations or building new HDCVI surveillance systems. </p> <h3>Fixed-Focal Lens Options</h3> <p> The camera is offered with a fixed-focal lens configuration, with <strong>3.6mm</strong> listed as the standard lens and <strong>2.8mm and 6mm</strong> available as optional focal lengths. The appropriate lens can be selected according to the required viewing area and installation distance. </p> <h3>IP67 Outdoor Protection</h3> <p> With an <strong>IP67-rated housing</strong>, the camera is designed for demanding indoor and outdoor surveillance environments. This makes it suitable for exterior walls, entrances, gates, commercial properties and other areas exposed to dust and water. </p> <h3>Easy Upgrade for Existing CCTV Systems</h3> <p> Because it uses HDCVI technology and supports multiple analog video formats, the Dahua DH-HAC-B1A51P-U-IL can be a practical choice for customers upgrading an existing coaxial CCTV system. It can provide 5MP surveillance while allowing compatible DVR/XVR infrastructure to remain part of the installation. </p> <h3>Recommended Applications</h3> <ul> <li>Homes and villas</li> <li>Retail stores and shops</li> <li>Offices and commercial buildings</li> <li>Warehouses and storage areas</li> <li>Building entrances</li> <li>Gates and access points</li> <li>Parking areas</li> <li>Outdoor walls and perimeters</li> <li>Small business security systems</li> <li>Existing HDCVI CCTV upgrades</li>


