Power On Power-off Delay Relay Automatic Disconnect 12V24V Trigger Control $ 5.64 Product information: Supply voltage: DC 5V 12V 24V optional Trigger terminal voltage: DC 3~30V [also can be triggered by key] Relay maximum control current: 10A Module size: 634220mm (length, width and height) Packing list: Relay module switch*1 Product Image: