5050 RGB 4 Pin LED Strip Connector, 10mm Strip to Power Adaptor Snap Down 4 Pin Connector for 5050 RGB Flexible LED Strip Lights [RGB-ACCESSORIE-019] - $0.69 :
Replacement UV Lamp Connector 4 Pin Socket
Replacement UV Lamp Connector 4 Pin Socket
4 Pin Male Connectors and Female Wire Cables for 3528 5050 RGB LED Strip Lights | eBay