The SolarSystem 1100, SolarSystem 550, and SolarSystem 275 can all be operated via the SolarSystem Controller.
The SolarSystem 275 has some limitations with the SolarSystem Controller. Due to it's compact size, the SS-275 has only 2 drivers which allows for 2 channel dimming capabilities as opposed to 3 channel on the SS-550 and SS-1100. The red LEDs on the SS-275 are powered by and dimmed with the first driver while the blue and white LEDs are controlled by the second driver. Any value entered into the white channel on the controller will not have an effect on the SS-275 as the unit does not have a white channel. Selecting view mode will cause the unit to shut power off to all of its LEDs.
The SolarSystem UVB, all SolarXtreme series lights, and any other fixture not mentioned above must be plugged into an external timer for automatic on/off scheduling.