California Lightworks SolarSystem Lighting ControllerThe SolarSystem controller works with all SolarSystem lights including the 1100, 550, 275 and Far Red series. It can control an unlimited number of lights from a single controller. The controller allows automated programming for spectrum control, 24 hour timer and day week month calendar. Now it is possible to program an entire grow cycle automatically varying the spectrum, the length of the day, transitions from veg to bloom, final finishing modes,