This set includes five 12V DC delay adjustable timer relays for delay off switching in low voltage control circuits. Function and benefit Adjustable delay: after the control input is released, the output stays energized for a programmable interval before turning off. This enables controlled shutdown, prevents rapid cycling, and smooths transitions in your system. Compatibility and flexibility All models share the same 12V DC input and delay off timer function, making them suitable for standard 12V DC control circuits and switch modules. Size and enclosure materials vary by model, allowing you to select the variant that fits your mounting and enclosure needs. Key attributes you can rely on Voltage: 12V DC Type: Delay adjustable timer relay for delay off switching Adjustable timing: configurable delay to suit different applications Practical use scenarios Lighting control: keep a light on for a set period after the switch is released, then turn off to save energy while avoiding abrupt lights going off. Equipment protection: provide a short cooldown or debounce interval after a command to prevent rapid cycling of motors or solenoids. Ventilation and climate control: continue fan or exhaust operation briefly after a demand ends to ensure proper air exchange or temperature stabilization. How to use Choose model 1 to 5 based on your mounting and size requirements while keeping the 12V DC input and delay off function. Wire the control input to the relay as per standard switch module practice and connect the load to the relay output. Set the desired delay with the available adjustment on the module (exact method varies by model). Reliability and build Each unit is designed for repeatable delay off operation in low voltage control systems, providing consistent performance over time. Package contents Five units, each a 12V DC delay adjustable timer relay for delay off switching.