LCDA mounts are universal projector ceiling mounts for installations requiring upright LCD/DLP projectors. LCDA-240C holds projectors on an adjustable tray & means that you can tighten the mount around your projector for a secure fit. It's a great solution for when you want to install a portable projector in the ceiling & take it down frequently for traveling. This mount is compatible for screens having VESA 75 x 75mm or 100 x 100mm compliant mounting patterns.