Bright up to 10,000 Lux LED light box * Full seven day alarm is provided to allow the user to set different times (if desired) on the alarm for different days of the week. The factory programmed time for all seven days is 07:00am. * A security feature that randomly turns the light full on and off between the times of 7:00pm and 9:00am can be set to operate when you are away from home. * Easy to read text display shows time and date. The day of the week and Leap years are automatically calculated. * Low power, energy efficient - 10 watts when the light is at maximumAll functions of the Sunrise System 320 are indicated on the large adjustable backlit LCD display to clearly show the function being altered.