Lo Noiz Scene File Setting -- Darker Image?

[Goldenplates]

I just tried a test of the Lo Noiz setting vs. the default Scene file #1 setting.

I found that the Lo Noiz setting was darker than the default Scene #1; does this make sense?

I was expecting lower noise, with a brighter image.

I shot indoors -- just light from exterior windows. 1080 30p, 1/30 shutter speed, 0 db gain.