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Stunko - a projector emitting exactly 1000 lumens, projecting onto a 300" diagonal screen at 1.0 gain, would measure 3.8 foot-Lamberts. However, using a screen of equal size with a gain of 4.5 would give you 17 fL. So yes, it is possible.

Frank - I may have overstated things a little.

Some hybrid models we've tested experienced significant loss of light output over the first few hundred hours of runtime, specifically in the green channel. I'm not an engineer, but I suspect it was related to the phosphor. Then again, we tested this phenomenon years ago when the first Casio hybrid projectors were released. We did not see that same dramatic degradation in the Panasonic hybrid model we reviewed.

So far, we have not seen evidence of similar rapid degradation in projectors that are solely LED-based, but we have also only reviewed a small handful of pure LED projectors. This is something we'll be testing further as the market matures.

It's possible that the loss of green we observed in the early Casio hybrids was a model-specific problem that will not reappear in other hybrid models, but I was commenting based on my own experiences. I realize now that I phrased my comment too broadly, and for that I apologize.