Dawn Simulator
Dawn Simulator "Sunrise System"
by Gullwing Ltd.
For millennia, human beings have awakened to the gradual coming of dawn and then fallen asleep
under the slow transition of dusk to starlight. Simulated dawns in the bedroom foster
spontaneous awakening with increased alertness at the chosen time of "sunrise."
Simulated dusks at bedtime can promote sleep onset and reduce reliance on sleeping pills.
Dawn simulation is efficient for treating seasonal affective disorder (SAD),
since it takes place toward the end of sleep and does not require extra time after
you wake up.
Our system replicates research units that were tested in a series of clinical trials
sponsored by the U.S. National Institutes of Health. Some people find dawn simulation
all they need to combat the winter blues, while others use it to help wake up,
followed by bright light therapy for an extra boost. The effect is like sleeping
outdoors in a tent, although you control the timing of sunrise. (Think of a springtime
sunrise in midwinter, when it is still dark outside….)
Don’t confuse the Sunrise System with so-called “dawn alarm clocks” that have been marketed
without data support and provide only limited lighting. An essential feature of the
Sunrise System is your ability to control the light level, duration and broad field of
dawn illumination, which is very important for finding the correct combination for
your individual needs. The unit may be used with incandescent/halogen light fixtures
up to 200 watts (US model) or 300 watts (European model). See our recommendation for
a broad-field lamp fixtures in the section below.
With their order, CET customers will receive specific guidelines for therapeutic
use of the dawn simulator for depression and sleep treatment, written by CET experts.
Configuring your Dawn Simulation System
To assemble a complete dawn simulation system, you will need a diffuse, filtered
incandescent/halogen light source that broadly illuminates your pillow area without
exposure to the naked bulb. (Fluorescent sources will not work.) The lamp fixture
plugs into the control box, which varies the voltage output to create the naturalistic
outdoor lighting pattern. Since it is located beside your bed, the fixture needs to
be sturdy and safe – and of course you will want it to be an attractive addition to
your bedroom. CET has evaluated a wide range of devices, and we refer you here to
top choices: the LightSource Model LS-80978. It is available in the US on several
the Web stores at various prices, so we urge you to comparison shop. Google the
model number to check out the sites, or
click here for a price comparison chart.
Instructions for use of the LS-80978PS with the Dawn-Dusk Simulator control box:
Do not use the separate dimmer cable that comes with the fixture. Instead, plug
the main lamp cable directly into the control box power output receptacle. Place
the floor stand about 2-3 feet to the side of your bed, and tilt and tighten
the articulating arm so the downward lamp lens aims toward your pillow from a
distance of about 36 inches (1 yard). There is no need for the arm and lamp to
extend over your bed. Take care to position the device so you can smoothly enter
and leave your bed in full darkness without bumping into the floor stand, articulating
arm or reflector unit. The amount of light you receive is adjustable by varying the
distance of the lamp from your pillow.
- RoHS, WEEE compliant and CE listed
- Variable length of dawn and dusk: 15-90 minutes
- Alarm, snooze and day-of-week functions
- Back-lighting and contrast controls for screen display
- Size: 130 mm W × 110 mm H × 70 mm D; 5.1” W × 4.3” H × 2.8” D
- Voltage: 120 Volts / 60 Hz (USA/CAN model SRS100US) or 230 Volts / 50 Hz (European model SRS100EU, SRS100UK)
- 30 day "no risk" return policy
- 1 year limited warranty

















