Many people enjoy using the Soleil Sun Alarm Clock on its own. However, others prefer a brighter light. The SA-300W Controller enables you to select the brightness that works best for you!  The Sun Alarm Controller allows you to use lamps up to 300 Watts with your Sun Alarm. Your external lamp will simulate the sunrise and sunset just as the Sun Alarm.  This converter must be used with the Soleil Sun Alarm as it will not work with other dawn simulators.  “Full Power” mode allows use of light boxes for treatment of Seasonal Affective Disorder.