Hikvision DS-2CD2T43G2-4I is a 4MegaPixel IP Bullet Camera. It offers high-quality imaging with 4 MegaPixel and 2688 x 1520 pixel resolution. It has AcuSense with Built-in Audio and EXIR 2.0 Smart IR, up to 80 M. The lens used is a 4 mm Fixed Camera Lens. The Sensor is a 1/3 " Progressive Scan CMOS. It can deliver clear imaging against strong backlight due to 120 dB WDR technology. It also has efficient H.265+ compression technology. this camera has IP67 water and dust-resistant rating. With the Progressive Scanning system; the Matrix size is 4 Mpx. The size of the Lens is 2.8 mm and the viewing angle is around 103 degrees. The Compression supported is H.265+ / H.265 / H.264+ / H.264 / MJPEG With a 80M Range of IR illumination. It can support Micro SD memory cards up to 256GB support for local recording. The mainstream frame rate is 25 fps @ 4 Mpx. The network interface is 10/100 Base-T, RJ-45. Supported Network protocols are TCP/IP, ICMP, HTTP, HTTPS, FTP, DHCP, DNS, DDNS, RTP, RTSP, NTP, UPnP, SMTP, IGMP, IEEE 802.1x, QoS, IPv6, UDP, Bonjour, SSL / TLS, PPPoE. It supports high-efficiency infrared LEDs technology, which evenly covers the whole plan of both central vantage points of the scene as well as the corners. For the Day/Night mode, It has ICR Movable InfraRed filter with AGC or Automatic Gain Control. The Anti-Flicker technology eliminates the tiring eyes flickering image effect. For the Focal Length & FOV; The 4 mm, horizontal FOV is 84°, vertical FOV is 45°, diagonal FOV is 100°. It uses an M12 Lens mount. With a Fixed Iris Type, it has an F1.6 Aperture. With the Intelligent Image, AnalysisThis camera needs PoE (802.3af), 12 V DC / 710 mA. While the Power consumption is ≤ 9.5 W @ PoE (802.3af) and ≤ 8.5 W @ 12 V DC. The Compact housing is Aluminum Alloy. The DORI Rating is 4 mm: D: 80 m, O: 31 m, R: 16 m, I: 8 m. For Video Compression The mainstream is H.265/H.264/H.264+/H.265+; the sub-stream: is H.265/H.264/MJPEG and the third stream is H.265/H.264.