The DM-CO-26NVD-SL color box security camera gives you an outstanding clear color picture during the daytime and a sharp night time image. The advanced 1/3” Color CCD produces a 520 TV lines of resolution 0.001 lux low light during the night. The on-board auto electronic shutter can adjust the refresh rate from NTSC: 1/60 PAL: 1/50 and automatically controls the AGC and Automatic white balance. The DM-CO-25NVD-SL is suited for uses in retail shops, banking, residential security and industrial business locations. Auto Electronic Shutter, This security camera operates efficiently on 12VDC 150mA of power or 24V AC Voltage Low Power.