I have this relay module connected to arduino uno and conecting VCC, GND and the 4 IN it works finne but when i connect a led strip and a desktop lamp to active them with IN 1 and 2 if the led strip is switched on the lamp dosn't work until the led strip is switch off. I think it's lack of pawer and I found this image online:
But my relay module dosn't have JD-VCC and the jumper is placed between GND2 and COM.
I'm starting in electronic and i can't figure it out.