The PSPRO-12V2A is an individual DC power supply used by many of the CCTV and IP cameras that we supply.   This power supply is used mainly for larger infrared CCTV cameras or infrared IP cameras which require more power. This 12V DC power supply is fully regulated and provides 12V DC 2 amps of power. The input power required is 100-240VAC 50/60Hz.  This camera uses a 2.1mm plug which is compatible with almost all CCTV cameras and IP cameras on the market.  The 2.1mm plug also work with pre-made Siamese CCTV camera cables which enables an easy plug and play application.