announced that a six diode version of its award-winning
ESL55-EX LED sight
glass light
has received ATEX approval, making an extra-bright LED
light available for hazardous environments that require stainless steel
housings. The new light has twice as many LEDs as the standard version.

ATEX is a directive mandating the stringent testing and certification of
equipment used in potentially explosive atmospheres established by the
European Union in 2003.

The explosion-proof ESL55-EX sight glass light, which features six
high-power LEDs in a stainless steel housing, is ATEX certified as safe
to use near gas (within ATEX Zones 1 2 and Group IIC) as well as safe
to use in environments that contain dust (within ATEX Zones 21 22 and
Group IIIC). A design that will not create a spark and a sealed
enclosure make the ESL55-EX sight glass light ideal for use in
environments where the potential exists for the presence of explosive
gas or an explosive dust.

The ESL55-EX produces an extremely bright light that can illuminate less
transparent process media and give operators a clear view of their
processes as well as provide a well-lit view of the interior of process
vessels such as tanks, reactors, hoppers, silos and pipelines. The
stainless steel housing of the ESL55-EX sight glass light is well-suited
for use in the biotechnology, pharmaceutical, and petrochemical
industries. It is also available with aluminum housing (model ASL55-EX).

Employing state-of-the-art green technology, the ESL55-EX sight glass
light produces light without transferring heat to the process, and it
has an exceptionally long operating life—more than five and a half years
of maintenance-free operation—50 times that of a halogen bulb. These
features make it ideal for heat-sensitive processes and use in sight
glass applications where exceptional reliability and low maintenance are
required. In addition, its lack of fragile filaments make it impact and
vibration resistant.

An operating life of approximately 50,000 hours significantly reduces
the need for maintenance, which is particularly costly in those
hazardous areas where power must be shut off before a bulb can be

To learn more about the ESL55-EX sight glass light, visit

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Complete Sight Glass Product Line

In addition to the ESL55-EX sight glass light, L.J. Star offers a wide
variety of conventional and explosion-proof luminaires for lighting the
interiors of tanks, pipes and vessels. Beyond luminaires, L.J. Star
offers a complete sight glass product line including sight glasses,
sight flow indicators, stainless sanitary fittings, and camera systems.


The ESL55-EX sight glass light is available from stock. For additional
information, contact L.J. Star Incorporated at,
330-405-3040, fax 330-405-3070, email, [email protected]

About L.J. Star

L.J. Star Incorporated provides an extensive line of process observation
equipment – sight glasses, lights, sanitary fittings, and level gage
instrumentation. Product lines include Metaglas® Safety Sight Windows,
Lumiglas® Explosion Proof Lights and Cameras, Sight Flow Indicators,
Sight Ports, Sanitary Clamps, Magnetic Level Gages and Gage Glass.
Metaglas is the #1 selling fused sight glass, proven in thousands of
installations around the world. Unlike some other sight glasses, it
meets stringent DIN 7079 and DIN 7080 quality standards, and it is
approved for USP Type I use. For additional information, or to request
third-party documentation of standards compliance and product
performance claims, contact L.J. Star Incorporated, P.O. Box 1116,
Twinsburg, OH 44087. Phone: 330-405-3040. Fax: 330-405-3070. Email: [email protected]

L.J. Star Incorporated
Suzanne Horrigan, 330-405-3040
[email protected]