This is one of our most popular and highly recommended color dome cameras for a number of reasons: 1.It is dc power supply and has auto iris, auto gain control and auto white balance. 2.Built with a 1/ 3" Sony Color CCD image sensor, 3.540/ 480 TV lines high resolution camera with a 0.0 LUX rating. 4.latest ir led support 30 m distance view 5.The 4.6.8.12 mm optional fixed lens gives you the flexibility you need to adjust the camera based on your specific needs.