You read the classified add correctly. The Colt Nite Lite is a short lived model that was made in the early 1990's. Alloy slide, stainless receiver, night sites, and in 380 caliber. It was one of Colt's ventures that sailed like the proverbial lead ballon.
Nice article on the "Night Lite" Mustang. It must be a take on the Night Commander I have. I have heard there is a Night Officers too.
My Night Commander is 1 of 250, manuf. in 1989. Factory configuration is stock series 80 LW commander (not enhanced) with Trijicon night sites, Colt black wrap around grips with Medallion, beveled mag well, Roll mark on slide reads "Night Commander", special ser# range NC000.