This AC/DC relay is a universal relay as it will work on 9~30VAC / DC10.5~36 VDC, and is a simple to fit module wherever a dry contact, voltage free switching is required or where there is a need for higher than usual currents and voltages to be switched. The DPDT(double pole double throw) Relay rated at 8 Amps, can be activated by power supply/high signal/low signal, to switch two outputs at same time. Works on AC or DC Automatic voltage selection No jumper links to select voltage Not polarity conscious Triggered by power supply/high signal/low signal LED indication when relay energized Energy saving feature that allows the relay to work at higher voltages