Electronics-Salon 2 SPDT 10Amp Power Relay Module, DC 24V Version.: Amazon.com: Industrial & Scientific
Amazon.com: HiLetgo 4 Channel 24V Relay Module with OPTO-Isolated Support High and Low Level Trigger for PLC Automation Equipment Control : Industrial & Scientific
12Pcs 24V DC Mini Power Relay Auto PCB Relay SRD-24VDC-SL-C Power Relay 5 Pins DC Power Relay PCB Mount Electric Relay for Universal Household Appliance : Amazon.in: Car & Motorbike