Lumistar Luminaire USL08LED-Ex-UL

Lumistar Luminaire USL08LED-Ex, UL-listed + T6


  • UL-listed
  • Temperature class T6 at a Ambient temperature up to 50°C
  • Extended voltage range (120 – 240 V AC)
  • Subsequent change of the radiation angle possible
    (15°, 25°, 35°)
  • LED technology with more efficient light output
    compared to the halogen version
  • Can be exchanged for the old halogen version 1:1, as the housing and the fixings have not changed on the outside

The Lumistar USL08 with UL/cUL Ex-listed is now also available in LED technology and can be are manufactured and sold. The approval includes the following technical details:

Voltage range: 120-240V
Approved for: − Class I Div. 1 and 2, Groups C and D, temperature class T6 at max. ambient temperature 50°C
− Class I Div. 2 Groups A, B, C, D, temperature class T2

There are two versions with different radiation angles and light colours:

Version 1:

  • Lumistar USL08LED-Ex with LED chip. (COB Version à Chip on Board)
  • Light output max. 2200 lumen
  • With this version, a subsequent lens change by the customer is possible. (possible radiation angles 15°,25°,35°)

Part no :
LS#3542.501.00 incl. 15° lens
LS#3542.502.00 incl. 25° lens
LS#3542.503.00 incl. 35° lens
Version 2:
Lumistar USL08LED-Ex with the 7-gang LED card from the Lumistar luminaires USL07LED or ESL/ ASL55 LED
Light output max. 1600 lumen (for applications where too high light output can cause glare,  e.g : (small boilers)
Part no :
LS#3542.504.00 incl. 11° lens
LS#3542.505.00 incl. 26° lens
Available: immediately
Delivery time: 2-3 weeks
Price (net): Euro 725,00
Attachment: Data Sheet

Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium

Luminaires (Ex)

Product Picture: Lumistar Ex Light Guide Luminaire Lumiflex Type USL 08 ALF-Ex, aluminium


For use in Explosion hazardous areas
Temperature class: T4 (60°C) & T5 (40°C)
Ignition protection: Class 1, Div.1
Explosion Group: C & D

For mounting on sight glass fittings… or for localized illumination of process operations in reactors, vessels and pipelines and also where there is limited space, primarily in potentially hazardous Ex zones.

For the illumination of process operations and/or the internals of vessels and plant in in potentially explosive environments, where the space available is limited.

The unit is made up of a general-purpose sight glass luminaire that has been modified to provide a fibre optic system which is particularly suitable for use wherever processes in Class I, Divisions 1&2, Groups C&D need to be  illuminated.

The unit can be installed for combined light and sight purposes as well as with VISULEX Ex camera technology.

This Lumistar luminaire has been specifically developed for light guide applications and is characterised by its:

Extremely high light output at only 39 W
Low energy consumption
Servicing intervals: filament lamp life greater than 6,000 hours

The light source can also be mounted at a distance from a vibrating vessel to extend the bulb life.

Protection: Suitable for wet locations acc. to UL-1598 and CSA C22.2
No. 250.0-08, IP65/IP67 (similar to NEMA4+4x), Class I, Div 1 & 2, Groups C & D

For the localised illumination of process operations at machines and internals of reactors; Specially developed for Light guide duties Power supply see data sheet