160" wide CIH 2.37:1, and I was zoomed using the full size, so I wasn't using the full chip area. I do not have any tools to measure screen brightness. I wish now I would have tried on my original unit before I unhooked it, since that bulb had almost 200 hours on it.
I was prepared to have to zoom it down and not use the full size of the screen.
UMR on HDR vs 4K: The benefit of greater saturation and luminance capability is...not very evident in all images unlike more pixels which can be seen in every scene.