The multi-color status LED provides information on the status of the ballast with respect to its
connection to a controller and its general operating condition, and also gives error and warning
signals. Consult the tables at right to interpret the status LED.
• All operating codes are represented by GREEN signals.
• All warning codes are represented by RED signals.
• All history codes (except the ignition code) are represented by YELLOW signals.
• BLACK dots in the diagrams represent the unlit LED.
• Warning codes and history codes override operating mode display.
LED signals are represented by colored dots in the diagrams in the table. In the STATUS INDICATIONS
table, the green dots do not represent individual flashes; instead they represent the duration that
the LED is illuminated green. Each dot shown in both diagrams represents one half second. For
example, the “Ballast on” signal is shown as a black dot and then four green dots. This indicates a
dark (unlit) LED for one half second and then a long green flash lasting two seconds.
In the ERROR OR WARNINGS INDICATIONS table, the individual colored dots do represent individual
flashes (black dots represent time that the LED is unlit between flashes). They also represent the
relative time duration of signals (each dot still represents one half second). For example, the “Too
high voltage” signal is shown as two red dots followed by two black dots. This indicates two red
flashes of one half second each followed by one second of a dark (unlit) LED.
TROUBLESHOOTING USING THE BALLAST’S STATUS LED
• In the event of bulb breakage, immediately unplug the reflector to prevent exposure to ultraviolet
energy, which may be harmful to eyes and skin.
• Keep room temperature below 95°F, with adequate air circulation by fan in the growing area.
• The DE lamp produces very high-intensity light and was originally designed for commercial
growing operations. Please take care to consider proximity to plants when installing your fixture.
You may want to allow more vertical space between the plant canopy and the fixture to mitigate the
high-intensity light and heat in the plant area.
• Always use a heavy-duty 3-pronged grounded timer, rated for at least 15 amps. Many 7-day digital
timers are not rated for 1000W lamps. Unplug ballast when changing or removing the lamp. Failure
to do so can cause ballast failure or improper diagnosis.
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