Slimline, instant start, hot cathode lamps have
triple-coiled electronics as cathodes that are heated by the arc
current. American Ultraviolet's filament construction uses a
molybdenum lead in a clamped-filament design similar in
construction to standard fluorescent lamps resulting in an
improved, shock and vibration resistant lamp. Instant start
lamps are especially suited to applications such as waste water
and purification of moving air that require "round the clock"
usage.
Cold cathode lamps are also instant starting lamps utilizing
a large cylindrical cathode instead of a coil filament so that
the lamps have a very long life unaffected by frequency of
starting AUV's unique electrode construction, which uses
two-lead assemblies, and virtually eliminates loose shell
problems.
Preheat-start/hot cathode lamps generally use standard
off-the-shelf fluorescent ballasts providing advantages in
economy and space. Preheat lamps have four electrical
connections per lamp and require more wiring than instant start
lamps.
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