  Ster-L-Ray�
Ultraviolet Germicidal
Lamp |
 Germicidal Ultraviolet Lamp Overview
 |
STER-L-RAY� germicidal lamps are short
wave low pressure mercury tubes that produce
ultraviolet wavelengths that are lethal to
microorganisms in the air, on surfaces and in
water. Germicidal lamps (sometimes also referred
to as UVC lamps) should not be confused with
sunlamps or blacklight lamps, for while these
are also ultraviolet lamps, the ultraviolet
produced is of longer wavelength and is not
useful for germicidal applications.
Wavelength - The nanometer (one billionth
of a meter) is a unit of length used to describe
ultraviolet wavelengths. Approximately 95% of
the ultraviolet energy emitted from STER-L-RAY�
germicidal lamps is at the mercury resonance
wavelength of 254 nanometers. This wavelength is
in the region of maximum germicidal
effectiveness and is highly lethal to virus,
bacteria, protozoa
and mold.
Ozone Producing Lamps - Ozone (O3) is a
highly reactive form of oxygen and is useful in
water purification, as a deodorizer and as a
cleaning agent. Ultraviolet wavelengths shorter
than 200 nanometers are capable of producing
ozone from Oxygen (O2) in the air.
STER-L-RAY� ozone lamps, in addition to
emitting germicidal ultraviolet output at 254
nanometer wavelength, also emit ozone producing
rays at 185 nanometer wavelength. Because it is
necessary to avoid exposing personnel to high
concentrations of ozone, the use of ozone lamps
is limited to applications in which ozone
concentration will not exceed .05 parts per
million in occupied
spaces.
STER-L-RAY� ozone producing lamps are
available in slimline, cold cathode, high
output, high intensity, enhanced output and
preheat types. |
Slimline Germicidal
Ultraviolet Lamps*
STER-L-RAY� Slimline germicidal
lamps are instant
starting and utilize a
coil filament on each
end which operates hot.
Lamp life is governed by
the life of the
electrodes and is
affected by the
frequency of starting.
STER-L-RAY� Slimline
germicidal lamps are
well suited to
applications requiring
high ultraviolet
intensity such as water
sterilization, air
purification in duct
systems and conveyorized
product disinfection.
Available in ozone
producing and non-ozone
producing versions. |
U-Shape
Slimline Germicidal
Ultraviolet Lamps*
STER-L-RAY�
U-shaped Slimline
germicidal lamps are
instant starting and
utilize a coil filament
on each end which
operates hot. Lamp life
is governed by the life
of the electrodes and is
affected by the
frequency of starting.
STER-L-RAY� U-shaped Slimline germicidal
lamps are well suited to
applications requiring
high ultraviolet
intensity such as water
sterilization, air
purification in duct
systems and conveyorized
product disinfection.
Available in ozone
producing and non-ozone
producing versions, and
are the ideal choice for
applications that
require more intense
ultraviolet radiation in
a limited space. |
Cold Cathode Germicidal
Ultraviolet Lamps*
STER-L-RAY�
Cold Cathode
germicidal lamps are
instant starting and
utilize a large
cylindrical cathode
instead of a tungsten
filament. Due to this
construction, the lamp
is not adversely
affected by frequent
starting and the life is
considerably in excess
of other lamp types.
STER-L-RAY�
Cold Cathode
germicidal lamps have
favorable operating
characteristics at
reduced temperatures.
They are, therefore,
widely used in walk-in
refrigerators and
holding rooms.
STER-L-RAY� Cold
Cathode germicidal
lamps are well suited to
disinfection of air and
surfaces of unoccupied
areas due to their long
life and low
depreciation. Cold
cathode germicidal lamps
are also employed in
applications where
frequent starting is a
requirement. Available
in ozone producing and
non-ozone producing
versions. |
U-Shape Cold Cathode Germicidal
Ultraviolet Lamps*
STER-L-RAY�
U-Shape Cold Cathode
germicidal lamps are
instant starting and
utilize a large
cylindrical cathode
instead of a tungsten
filament. Due to this
construction, the lamp
is not adversely
affected by frequent
starting and the life is
considerably in excess
of other lamp types.
STER-L-RAY�
U-Shape Cold
Cathode germicidal
lamps have favorable
operating
characteristics at
reduced temperatures.
They are, therefore,
widely used in walk-in
refrigerators and
holding rooms.
STER-L-RAY� U-Shape
Cold Cathode
germicidal lamps are
well suited to
disinfection of air and
surfaces of unoccupied
areas due to their long
life and low
depreciation. Cold
Cathode germicidal lamps
are also employed in
applications where
frequent starting is a
requirement. Available
in ozone producing and
non-ozone producing
versions, and are the
ideal choice for
applications that
require more intense
ultraviolet radiation in
a limited space. |
Preheat Germicidal
Ultraviolet Lamps*
STER-L-RAY� Preheat
germicidal lamps are
operated by a preheat
start circuit that
employs a relatively
compact and economical
ballast. The preheat
circuit requires four
electrical connections
per lamp and a slight to
moderate delay is needed
to start the lamp. Some
modern electronic
ballasts are capable of
instant starting a
preheat lamp. Available
in ozone producing and
non-ozone producing
versions. |
High Intensity
Germicidal Ultraviolet
Lamp*
STER-L-RAY� High
Intensity germicidal
lamps are manufactured
with a unique structure
and large diameter
quartz envelope which
translates to more than
twice the amount of
ultraviolet output when
compared to standard
germicidal lamps of the
same length. Custom
designed lengths can
also be supplied.
Available in ozone
producing and non-ozone
producing versions. |
High Output Germicidal
Ultraviolet Lamps*
STER-L-RAY�
High Output (HO)
germicidal lamps are
similar in size and
shape to conventional
germicidal lamps but are
capable of operating at
higher input power and
current. Atlantic
Ultraviolet's Surelite�
ballasts have been
extensively tested with
STER-L-RAY� High
Output (HO) lamps
and are strongly
recommended to achieve
the best performance and
longest lamp life.
STER-L-RAY�
High Output
germicidal lamps are
widely used in forced
air duct systems and
water disinfections
applications. HO ozone
producing lamps are
often found in odor
control and
photochemical
applications. |
Enhanced Output�
(Amalgam) Germicidal
Ultraviolet Lamps*
STER-L-RAY� Enhanced
Output� (Amalgam)
lamps provide germicidal
ultraviolet output three
or more times that of
conventional germicidal
lamps of similar length
without sacrificing
efficiency or lamp life.
STER-L-RAY� Enhanced
Output� (Amalgam)
lamps are the highest
expression of
ultraviolet lamp
technology and as such
are the subject of
ongoing technical
development and
improvement. Custom and
proprietary designs are
available to satisfy
specialized needs. A
complete range of
Surelite� high
efficiency electronic
ballasts are available
to provide superior and
reliable performance of
STER-L-RAY� Enhanced
Output� ultraviolet
lamps. Available in
ozone producing and
non-ozone producing
versions. |
Hot Cathode Soft Glass Germicidal
Ultraviolet Lamps*
Hot Cathode
Germicidal Ultraviolet
Lamps produce short wave
radiation in the range
of 253.7nm (nanometers)
that have an excellent
germicidal effect.
Ultraviolet germicidal
lamps are similar to
general fluorescent
lamps but are
manufactured with a
special glass which
efficiently transmits
ultraviolet rays.
Hot Cathode
lamps utilize tungsten
filaments, located
inside each end of the
lamp, which are coated
with emission material
and, under normal
operation, govern the
life of the lamp.
Frequent starting of the
lamp reduces the overall
lamp life. Lamp is also
affected by extreme hot
or cold temperatures.
There are several
different lamps with
varying lengths and
watts to choose from.
Most of these lamps use
a miniature bipin (G5)
or medium bipin (G13)
base. Lamps can be used
in a variety of air,
water and surface
disinfection
applications. Call and
speak with one of our
ultraviolet application
specialists to determine
the type of lamp best
suited for your
application. |
Steadfast�
Lamp Holders,
Sockets & Wiring Devices
 |
ArmorLite�
Safety Shield
 |
Crystal Clear�Quartz
Sleeves
 |
Surelite� Electronic Ballasts
 |
CAUTION:
Exposure to direct or
reflected germicidal
ultraviolet rays will
cause painful eye
irritation and reddening
of the skin. Personnel
subject to such exposure
must wear suitable face
shield, gloves and
protective clothing.
*Hg - LAMP
CONTAINS
MERCURY, manage in
accord with disposal
laws, see:
www.lamprecycle.org |
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