ETC ColorSource ThruPower User Manual page 19

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Mod-Square: The mod-square curve provides a
non-linear relationship between control level and
voltage. For most tungsten lamps, this provides
the best relationship between brightness and
level, and is the default.
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Fluorescent: The fluorescent curve provides a
linear curve which steps to 46% level when the
level is raised above zero – this is helpful with
dimmable fluorescents and other non-tungsten
loads. This initial voltage is 47% of the
incoming voltage.
Menu structure
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Control Input
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Control Input
Linear: The linear curve provides a
linear relationship between input
control level and output voltage.
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Control Input
Preheat: The preheat curve provides a
fixed preheat at 5% of the incoming
voltage (12V assuming a 230V input).
Preheat is used to extend lamp life when
lamps are being turned on rapidly from
cold.
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