Hi Ranajit, thanks for the review!
Glad the fit and function are working well. Just a clarification on the settings: the NLRS-612 has a 5-position sliding switch that selects color temperature (2700K through 5000K), which controls how warm or cool the light appears. There are no separate brightness settings on the fixture itself. Dimming is done through a compatible wall dimmer.
Hope that helps, and let us know if you have any questions!