The WV-CL934 camera features Auto Back Focus (ABF), which re-adjusts the back focus when switching from color to B/W, ensuring optimal picture quality and reducing post-installation adjustments. High sensitivity Day/Night offers detailed images in light as low as 0.09 lux in color, and 0.008 lux in B/W. With both Video Motion Detection including sensitivity step and scene change detection to alert if the camera has been tampered with, the WV-CL934 delivers enhanced functionality and helps maintain the highest levels of security. Power = 24V AC or 12V DC. Lens is optional.