Yes, the HiViz LiteWave H3 Tritium/Litepipe Pistol Night Sight Set is compatible with the S&W Equalizer as it accepts standard Shield spec sight sets.
While the dovetail foot might fit the Equalizer's slide, the rear sight MAY hang over the end of the slide! Because the rear sight is at the end of the slide, due to the Optic Cut plate.
(I have & Love, the H3 day & night sights on my 380 EZ & 9 EZ. The rear sights do lay acroos the top of the slide. But there is enough room on the slide to fit!)
I bought a set of night sites that were made for the Shield Plus. They did not fit the Smith and Wesson Equalizer. I contacted Smith and Wesson directly, and they said that the Equalizer sights are the same as sights for the CORE and METAL. The sights for the regular Shield will not fit the Equalizer.