Pack of 30: RGB Solderless Strip to Strip (no Wire) Connector for LED Strip Lights

I have not put these in use yet . MY reason for purchasing these is to cut them in half with a sharp knife and a hammer to expose the 4 contacts so that a 4 wire round conductor of very short length can be soldered to the contacts. Since flat RGB LED strips will not bend to make 45 or even 90 degree bends for under cabinet installation . The cut strips will still easily slide into the connectors and be locked in by the black slider .I searched fairly extensively and the only sources I found to something similar would have required high cost shipping from China