24v to 12v splitter with 2.1 mm dc plug Use this Splitter to control any 12 volt gadget remotely.Stretch out energy to 328 ft 24v injector excluded, not for use with a PoE switch.Adapters accessible independently: 0.7mm and 2.5mm.These gadgets use power from the extra information wires in the ethernet link. The splitter at the camera brings down the voltage to 5 volts to work the device.600 mama from the 24v side produces 2 amps on the 12v side