Time Delay Function The DC 12V relay module includes a multifunction timer with eight adjustable time ranges from 1 second to 1 hour. It supports both delay turn on and delay turn off, enabling flexible control of power delivery to connected devices. Protection and Reliability Builtin power reversal protection diode guards against reversed power connections, enhancing safety and durability of the module. Load Capacity Designed to drive substantial loads, with support for 250 V AC at 10 A or 30 V DC at 10 A. This provides reliable power handling for a wide range of appliances and electrical equipment. Key Specifications and Compatibility Operating voltage: DC 12 V Time delay ranges: eight adjustable settings from 1 s to 1 h Delay on and delay off functions: available for versatile control Load ratings: up to 250 V AC at '10 A' or 30 V DC at 10 A Suitable for integration in standard 12 V control circuits and automation setups Practical Applications Industrial and commercial control: use the timer to start equipment (such as fans or pumps) after a delay, reducing inrush and simplifying sequencing. Safety and cooldown tasks: implement delay off to ensure a device remains powered for a set period after a control signal ends, aiding safe shutdown and cooldown. Energy management and display lighting: schedule timed illumination or equipment deenergization in 2ndtohour ranges for efficient operations. This product description preserves the original model and function details while presenting clear, customerfriendly benefits and practical use cases.