This is a12V Conduction delayrelay module - This is a delay turn-on module. the use of high-performance timing CPU design. - the power indicator LED and switch trigger timing indication LEDs; - The output can be connected to AC 250V 10A DC 30V 10A load; - There is the chronopotentiometry regulation time, adjustable from0 to 10 seconds by default, or by changing the capacitanceadjustment time longer For applications of: Vehicle equipment-delay to prevent car ignition, prevention of high sudden current to burn components and devices. Specification: 1.Module based on: NE555 chip. 2.Delay modue:delay connect module 3.Input voltage: DC12V 4.Control voltage: AC 0~250V / max. 10A, DC 0~30V / max. 10A the operating voltage: 12 volts DC; (otherwise 5V optional) 5.Max. load: 2200W Main Chip (NE555) Characteristics: 1.Timing from microseconds to long hours 2.Simple circuit design 3.Precision Pulse Generation / Timing, 4.Adjustable Duty Cycle Package Included: 1PCS*DC 12V Delay relay shield Timer Switch Adjustable Module 0 to 10 Second