I have worked on several TruVue Vango LED DLP front projectors. This projector is sold by AV Science. The LED single chip DLP light engine in this front projector eliminates lamp replacement and color wheel color breakup.
Precalibration the colors from this machine were highly exaggerated. Post calibration the image was very sharp with very accurate HDTV colors and gamma. The separate color processor option for these was not necessary to obtain a quality image. The motion processing of this machine is also excellent. The measured ANSI contrast was 800:1 and native on/off contrast was 2000:1 and the light output was 400 lumens. The dynamic black mode in this projector will increase the on/off contrast to about 10,000:1, but it operates like a dynamic iris dimming the scene in general. This projector is not nearly as quite as one would think. I found it louder than a JVC RS20 on high lamp.
Having seen one with 500 hours on the projector it appears they are holding their light output and picture quality over an extended time frame.