This is a 12V Conduction delay relay module- This is a and high quality delay turn-on module.the use of high-performance timing CPU design.- the power indicator LED and switch trigger timing indicationLEDs;- The output can be connected to AC 250V 10A DC 30V 10Aload;- There is the chronopotentiometry regulation time, adjustablefrom0 to 10 seconds by default, or by changing thecapacitanceadjustment time longerFor applications of：Vehicle equipment-delay to prevent car ignition, prevention ofhigh sudden current to burn components and devices. Specification:1.Module based on: NE555 chip.2.Delay modue:delay connect module3.Input voltage: DC12V4.Control voltage: AC 0~250V / max. 10A, DC 0~30V / max. 10A the operating voltage: 12 volts DC; (otherwise 5V optional)5.Max. load: 2200WMain Chip (NE555) Characteristics:1.Timing from microseconds to long hours2.Simple circuit design3.Precision Pulse Generation / Timing,4.Adjustable Duty Cycle5.Countless Application and Information Sources Package include：1x12V Delay Adjustable Timer Relay Switch Module 0-10 Second NE555 Oscillator