Main features? VGA (640x480) resolution images in real time? Using advanced video compression technology, high compression ratio, and very flexible? Efficient use of infrared light, long life, lighting distance up to 20-30? ICR-IR filter automatic switch, true day/night surveillance? Support PoE power supply function? Supports dual stream support mobile surveillance? Supports automatic aperture, auto electronic shutter function, adapting to different monitoring environments? IP66 waterproof and dustproof design and high reliability DS-2CD8233F-EI (Z) (s) model model DS-2CD8233F-EI (Z) (s) name VGA 1/4 "CMOS IR waterproof adjustable ICR day/night sensor type 1/4 type tube-webcam camera" Progressive Scan CMOS minimum illumination 0.01 Lux@ (F1.2,AGC ON), 0 Lux with IR0.014LUX@ (F1.4,AGC ON), 0 Lux with IR shutter 1/25 second to one-one hundredth, 000 second lens 2.8-12mm@F1.4, horizontal view angle: 70 °-17.5 °-Z:2.8-12mm@F1.2, horizontal view angle: 71 °-19 ° φ 14 type Auto Iris DC lens interface-driven ICR infrared day and night mode filter-compression standard for video compression standard H.264/MPEG4/ MJPEG encoding H.264 BaseLine Profile/Main Profile/High Profile type compressed output code rate audio compression G.711/G.726 standard audio compression bit rate 32 Kbps~8Mbps 64Kbps (G.711)/16Kbps (G.726) maximum image size 640x480 frame rate 50Hz:25fps (640x480) 60Hz: