CG05SZ-009 4-Channel 5V Power Relay Module for Arduino - Red + Blue
2 Indication LED for status PCB location hole: 3mm; Relay contact capacity: AC 250V 10A DC 30V 10A; Specification: Power supply: 5V; Drive level: 5V TTL (High level drive); Application: Great for Arduino DIY projects; A product for Arduino that works with official Arduino boards.