Componentes Eletrônicos você encontra aqui na Mamute Eletrônica | Módulo Relé 5V 10A 1 Canal com Sensor de Chamas
How to Set Up a 5V Relay on the Arduino - Circuit Basics
2 Relay Module 5V opto-isolated
How to use 5V Relay on Arduino - ElectronicsHub
Amazon.com: 12Pcs 5V DC Mini Power Relay Auto PCB Relay SRD-05VDC-SL-C Power Relay 5 Pins DC Power Relay PCB Mount Electric Relay for Universal Household Appliance : Automotive
Buy Finder 36.11.9.005.4011 PCB relay 5 V DC 10 A 1 change-over 1 pc(s) | Conrad Electronic
Amazon.com: Módulo de relé de 5 V, 1 canal para detección de luz de fuego, sensor de llama, módulo de relé : Industrial y Científico