Triangle Bulbs 4 Pin Male Connectors for Led Strip Lights RGB 5050 3528 Insert Easy to Use, (Pack of 10) Applications : RGB SMD-5050, RGB SMD-3528 led strip lights, 4 Pin connectors are used between LED strips or controller or extensions Use for the connection of led RGB strip lights. Connectors can be linked together to make longer runs. Material: Pins are copper plated.