This 12VDC power distribution box powers up to 18 of your 12 Volt DC cameras. Each of the 18 power outputs includes its own individual Polyfuse and LED light for monitoring the power status. The power distribution box also comes with a circulation window that provides passive and silent cooling for efficient operation. The 20 amp power has ample enough amperage to supply each of your CCTV cameras with over 1 amp of power each. The typical infrared security camera asks for 1 amp of power leaving you extra power to spare with this powerhouse of a power supply.