Hurricane controller, correct? The lights ramp down over time based on what you set in the controller. The final result will be what you have set under - Set PWM (Night) option. There you can set the Channel 1 (Blue) and Channel 2 (White). If you want 0 lights on during the night set both channels to 0. I leave the blues set to 30, and whites 0. The controller does have something called a Moon Phase that does some automatic adjustments based on geolocation. I turned it off in favor of manual settings.
Not sure if you've looked over this link. Page 8 of the PDF has an example setup.
Steves LED Controller Setup