Celebrating 26 Years 1999-2025
Lumistar Luminaires USL 13-LED USL 33-LED
USL 13 LED USL 33 LED

The Lumistar luminaires USL 13-LED and USL 33-LED are designed for universal mounting on sight glass fittings. The USL 13-LED features a hinged bracket for easy attachment, while the USL 33-LED is a special version for sterile environments with an adapter collar for mounting over flanges. Both models provide glare-free illumination and fit circular sight glass fittings similar to DIN 28120/DIN 28121, screw-type sight glass fittings similar to DIN 11851, as well as METAGLAS and BioControl fittings.
Specifications
- Operating Voltage: 12 V or 24 V AC/DC
- Power: 3.5 W (24 V), 2.5 W (12 V) LED
- Colour Temperature: 4000 K
- Luminous Flux: 180 lm
- Reflected Beam Angle: 36°
- Protection Class: IP65 dust- and waterjet proof according to EN 60529 / DIN VDE 0470 Part 1
- Maximum Ambient Temperature: 40°C at the cable entry gland
- Materials: Luminaire body and cover made of stainless steel 1.4404; hinged bracket and flange collar made of stainless steel 1.4301
- Connecting Cable: Standard length 3 m (other lengths available on request)
Common Applications
- Suitable for chemical, pharmaceutical, biogas, and food processing industries
- Ideal for illuminating bioreactors, laboratory mixers, filters, tanks, agitators, separators, pipelines, and other mostly closed vessels
- Designed for non-explosive operating environments
- Circular sight glass fittings similar to DIN 28120 from DN 25
- Circular sight glass fittings similar to DIN 28121 from DN 40
- Visual flow indicators from DN 25
- Screw-type sight glass fittings similar to DIN 11851 from DN 50
WANT MORE TECHNICAL DETAILS? DOWNLOAD OUR DATASHEET.
INTERESTED OR HAVE QUESTIONS? GET IN TOUCH WITH US NOW!