The Microcomputer Smart Time Delay Relays precise interval control with three voltages option(DC12V/24V, AC110 220V), featuring programmable ON/OFF cycles and repeat settings for automated device management. This cases relays supports large time spans while operate through switches optimization. Ideal for electricians, facility managers, and smart home enthusiasts requiring automation for industrial equipment, security systems, or energy saving applications. Perfect for scheduling lighting systems, irrigation controls, or HVAC units in residential/commercial spaces, ensuring seamless operate without manual intervention. Package includes: 1pc Delay Module