AspenTek 10mm Wide Led Strip Connector 4 Pin Conductor for 3528 RGB Led Light Strip or 5050 RGB Color Changing Led Strip Light, No Need Soldering,20 Pack Suitable for 3528 or 5050 led strip light with 10mm wide PCB board;NOT for 3528 rgb led strip light 8mm width No need welding or soldering; easy to use 10mm wide 30mm length 4 pin Connector Strip to strip connector without soldering; Cut the strip on the cut line;Splice the ribbon electrically 12 months warranty and 30days money refund without any reason