DC 5-12V Adjustable Delay Timer Switch NE555 Relay Shield ModuleSpecification:The power indicator LED and switch trigger timing indication LEDsThe output can be connected to AC 250V 10A、 DC 30V 10A loadTime delay can be adjusted、 ( 0-150 seconds)For applications of Vehicle equipment-delay to prevent car ignition、 prevention of high sudden current to burn components and devicesSize: 40 x 20mmWorking voltage: 5-12VPackage included:1 x Adjustable NE555 module