We are professional manufacturer and distributor of CCTV power supplies.It supports multiple cameras from a single source.So there is no need for a large number of individual transformers,It also provides a neater more professional installation by using a single AC outlet. Our power supply protects itself under bad circumstance when shortcircuit,overload overcurrent or surge happens,so safeguards your equipment.All our power supplies have PTC self-resetting SmartFuses function,These devices open to protect the equipment but,automatically reset themselves when the problem is removed.