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/ 4" Ultra Hi-Res Sony Color CCD image sensor, 3.480 TV lines high resolution camera with a 0.01 LUX rating. 5.The 27 zoom optional vari focal lens gives you the flexibility you need to adjust the camera based on your specific needs.