1、Can be used for remote control, communication, automatic control system and electronic equipment, etc. 2、The relay module can automatically adjust, which can protect and change the circuit 3、The module has standard structure and fine workmanship, compatible with most relays 4、Adopted of high quality electronic components, and accuracy process, ensure for the durability 5、Available in two styles for choices: DC12V and DC5V, you can choose the suitable one Item Type: Double-Knife Double-Throw Relay Module Working Voltage: DC 5V / 12V Working Current(relay Connected): 35ma Standby Current(relay Off): <1MA Input Control Signal Voltage: 0V-0.6V low level (relay closed) 0.6V-2.4V (unknown state) 2.4V-24V high state (relay open) State High Current Input Control Signal: 2.4V: 0.15 mA 5V: 0.4 mA 12V: 1.2 mA Charging Relay: 1A 125VAC; 2A 30VDC 1 x Module