Built-in infrared LED, may work under zero degree of illumination environment • The infrared project distance is between 30 meters (100 ft) • Using metal crust (IP67 standard) • Automatic backlight compensatory function • Automatic tracking white balance • Socket Plug (one of following types)   Model Name DVRWS-C635B Pick-Up Device 1/4" Sony Color CCD image sensor Number of Pixels NTSC: 768x494 PAL: 752x582 System of Signal NTSC PAL Horizontal Resolution 480TV Lines Minimum Illumination 0 Lux(with IR LED ON) Lens CS Mount, 3.6mm Lens View Details: angle & distance (Optimal performance) Horizontal: 54°, 25ft Vertical: 42°, 11ft Diagonal: 65°, 28ft Backlight Compensation On/Off Auto Electronic Shutter 1/50s(1/60s)~1/100,000sec Auto Gain Control Auto S/N Ratio >48db Gamma Correction >0.45 Operation Temperature -20°C~50°C (-4°F ~ 122°F) Sync System Internal, Negative Sync. Video Output 1Vpp/75Ω Power Source Supply 12VDC(+/~10%)/300mA Weight Approx. 300g Dimension (RxH) 120x75 mm Disclaimer: The style and quantity of mounting bracket provided with the camera may vary from the picture. Please inquire for more details.