Here is a screenshot for the controller and what kind of capabilities you have.

Basic Settings:
Here you can set the sunrise time, maximum lamp brightness during the day, sunset time and maximum moonlight intensity. By clicking on the Probe/Detect button you can read the individual parameter values stored in the lamp’s computer. Click the Set button to save a defined value in the lamp’s memory.
Advanced Settings:
If you choose to unlock this option you will be able to configure the lamp in the advanced mode, as well as access the service settings – for example, fan speeds.
a) Colour Temperature (CT) - allows the user to change the hue temperature of the lamp by independently setting the actinic light channel brightness (together with the UVA diodes built in this section) and the daylight channel brightness. The brightness range of each channel can be set from 1 to 100%.
b) Moonlight settings – the lamp simulates moonlight, retaining the full, 28-day light cycle (in accordance with the real calendar). The maximum channel brightness for full moon can be configured in the basic settings section.
c) Seasons simulations – enabling this option the computer will use the pre-defined charts of the changes in brightness, length and characteristics of sunrise and sunset as well as the resultant hue temperature dependant on the season. In this mode the lamp can control the wireless heat/cool driver, thanks to which it raises the aquarium temperature during the summer and decreases it in the winter – thus simulating real yearly temperature changes in the Indonesian region.
d) Overcast days simulation – this option is responsible for simulating close-to-natural changes in light intensity and hue on a daily/monthly basis. The frequency of cloudy days depends on the actual season (summer/winter).
e) PAR programming – enables the simulation of light intensity changes during the day, programmed according to time and power on a light curve. The resulting light has the characteristics that are almost identical to natural sunlight, which eliminates the risk of burning or overexposing corals. Curve programming is done by giving two argument values for each point:
•time (hour) assigned to a given value, and
•brightness determined at a given moment. The user has 40 fields (points that determine the curve) at their disposal, which makes it possible to quite accurately obtain a characteristic similar to the one above.
f) Sunrise and sunset simulation options – here the length of sunrise and sunset is defined (in minutes).
g) Fan settings – the BT EX series lamps are equipped with an internal sensor measuring the temperature of the core which cools the LED diodes section, and a driver enabling a smooth change of the cooling fans speeds. The user can freely define the speeds depending on personal preferences, needs, and the position of the lamp (open tank, lighting hood/canopy, etc.). If the critical temperature is exceeded (because of a malfunction or damage to one or both fans)