The Hitachi CP-X401 Projector is a XGA Conference Room Projector. This lamp based projector is capable of displaying 3,000 Lumens at its brightest setting with a native resolution of 1024x768 . The internal 3LCD technology is an innovative 3-chip design that sets itself apart by delivering vibrant, true-to-life images with better color brightness and a wider color gamut.

All sources I can find say this is 3000 lumen.  I have no idea who stuck the label on it saying 4000 lumens.  I should probably remove that label and take another picture.

Please see Projector Central etc. for full specs.