Hi peter,
This is module 5V Dual-Channel Relay Module - Pinout, Specification, Application, Working, Datasheet
And this part had problem need fix: ArduinoDersleri/Fritzing/2-Channel 5v Relay Shield/2-Channel 5v Relay Shield.fzpz at master · GungorYalcin/ArduinoDersleri · GitHub
Thanks Peter!