Do NOT buy anything from these con artists!
Do NOT buy anything from these shysters! They sold me 2 roll-up garage door motors and this guy in the video is the worst. Rude, direct and wanted me to find the parts by calling a factory that was the wrong one. In my case, the beam sensors were broken and the wires that connect them to the mainboard are so brittle, that anything below 35F will render them rigid and they wil break easily.