Question about LG Ph450ug

...must correct myself. The supposed 10x10 Vesa holes are actually spaced as follows: 10 to 10 and 2x 8.75 to 8.75 cm. Distance of the former to the latter two is (measured at right angles) 9.0 cm.
Crazy!

Hi, I have the beamer myself and am very satisfied with it, so much in advance. There are 4 threaded holes on the bottom for mounting screws, all in standard 10x10 Vesa format. I hope this is helpful. Tip: there are also 4 adjusting screws on the outside for height levelling (for uneven surfaces / floors). If you unscrew the screws slightly, the feet, i.e. the head of these screws, protrude like a (not quite) hammered-in nail. This would make it easy to hang the unit on a suitable wall rail (in U-format).