(220V LED Strip Connector 3528 5050 4pin RGB Straight Corner Cross L X T Adapter. 6) 4 pin 8mm RGB connector for PCB width : 8mm (pin distance:3.3-3.4mm) RGB 5050 led strip 110v 220v. 7) 4 pin 10mm RGB connector for PCB width : 10mm (pin distance:4.2-4.3mm) RGB 5050 led strip 110v 220v.