ITEM NAME:8 way Relay Module 24V 8 Channel Relay Module Board for Arduino PICSEZT FT Module parameters: Color: As Picture PCB Color: Black board four weeks with four screw holes, hole diameter 3.1mm, easy to install and fixed Relay selection of quality loose music relays, SPDT. A common terminal, a normally open, one normally closed terminal low pull, high release. Energisation status indicator light, release status LED is off relay Maximum Output: DC 30V/10A, AC 250V/10A Wiring: VCC: positive power supply system GND: System power supply negative IN1 - IN8: relay control ports.Relay selection of quality loose music relays, SPDT. relay Maximum Output: DC 30V/10A, AC 250V/10A. low pull, high release. Energisation status indicator light, release status LED is off.