Test the Light Tubes
Your Day-Light uses three 36 watt compact fluorescent
light tubes and has a two and three light setting.
The center switch position is OFF.
For therapy, slide the switch UP.
The lamp should illuminate with no
gaps (3 bulbs on). Slide the switch
DOWN for the task setting. The
lamp should illuminate, but at a
lower intensity (2 bulbs on).
If any tubes do not light up, one or more may be loose or
damaged. You will need to remove and reinstall the
nonfunctioning tubes to assess the cause of the issue.
Removing Light Tubes
1. Unplug the Day-Light.
2. Remove the 2 screws on the
bottom of the lens first (H)
and 2 screws on the back of
the light head (I) with the
Philips screwdriver.
3. Gently remove the lens
being careful not to
damage the 2 lower prongs
-
see image “O”.
4. If the light tube is loose
remove shipping elastics
around the metal clips and
discard (J).
5. Remove and discard the
rubber shipping insert at
the socket base of the light
tube (K).
6. To remove the tube,
depress the white clip in the
middle of the light housing
unit (L). With your other
hand, grasp the tube near
the plastic base and gently
wiggle it to raise it above
the white clip.
7. Twist the light tube until
both sides of the base
comes out of the socket.
8. Disengage the light tube
from the retainer clip (M).
To Install a Light Tube
1. To re-install the light
tube, hold the tube
horizontally and slide
the top end into the
retainer clip.
2. Then gently slide the
tube prongs into the
socket. When it is
fully in place you will
hear a ‘click’ (N).
3. Once the light tubes
are installed correctly,
plug the Day-Light in
and check that the
tubes illuminate in
each switch position.
If working, unplug and
continue to the next step. (If not, try again before
determining that there is another problem with the
light.)
4. Replace the polycarbonate lens by sliding the two
prongs on the bottom of the lens into the back
housing case (O).
5. Reinstall the two back screws and then reinstall the
two bottom screws. Do not over tighten as this
could result in stripping the screws and sockets.
Light tubes are rated for 8,000 hours of use, but we
recommend replacing the tubes after two (2) years of
daily, seasonal usage.
All fluorescent light tubes deteriorate over time and LUX
levels gradually decline. Regular replacement will ensure a
10,000 LUX intensity for your light therapy sessions.
5
H
I
J
M
L
K
LENS
BACK OF
ENCLOSURE
N
O
PRONG (2)
LAMP HEAD BOTTOM
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