Cold Temperature Operation
In temperatures below 60°F (15°C), the ballast may take longer to strike. If lamps do
not strike within 5 seconds, switch the ballast to OFF and try again. Check that the
lamps are properly seated, set dimmer to Full and restrike. If temperatures are too low,
try to warm up the fixture to at least 60°F. Lamps will turn on at preset dimmer settings
as long as the temperature is above 60°F (15°C).
LAMPS FAIL TO LIGHT:
• Check ambient temperature. The unit may have trouble starting if operating in
temperatures above 125°F (51°C) or below 60°F (15°C).
• With the power switch in the ON position, the red light should be on. If it is not,
voltage is not present. Check your power feed.
• The onboard dimmer should be full up (turned completely clockwise).
• Check lamp contact. Lamps must be properly seated. If one lamp is not making
contact or is burned out, two lamps will be off.
• Replace lamp or lamps.
• After having checked that lamps are correctly seated, turn off power to the fixture
for 60 seconds and restart.
• Check that the lamp selector switch is in the appropriate setting.
Diva 401 & 400U Lamp Select Switch
10
Ballast Power
Warning! To Ensure Proper Operation
ALWAYS TURN OFF THE FIXTURE BEFORE
connecting or disconnecting lamps. After the lamps
are properly installed, the in-line switch can turn on
the ballast. Avoid operating in temperatures above
125°F (51°C) or below 60°F (15°C).
Troubleshooting
The Diva-Lite 401 and Diva-Lite 400 Universal Lamp Select
Switch allows for 4 Lamp or 2 Lamp operation.
Turning off 2 lamps equals a one f-stop reduction in light output
without color shift. In the 4 Lamp position all lamps are on.
In the 2 Lamp position only the two center lamps are on.
Note: This feature is not available for the Diva-Lite 201.
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